Tag Archive | rough-legged hawk

Sunday Showcase: Autumn in Calgary’s Parks

Posted by Bob Lefebvre

Catching up with some great autumn photos of Calgary Birds and Mammals, taken by Tony LePrieur from September 25 to October 16, 2016. The locations were the Inglewood Bird Sanctuary, Carburn Park, Fish Creek Provincial Park, and the Weaselhead Nature Area.

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Boreal Chickadee, Bebo Grove, FCPP, September 25, 2016. The bird has no tail. Birds don’t molt all their tail feathers at once, so this indicates it probably survived an attack of some kind.

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Great Horned Owl, Bebo Grove, FCPP, September 25, 2016. These resident owls are fairly common it the city. Pairs will be spending the days resting on their winter roosts now, and by February (or sometimes even January) they will be on their nests, incubating eggs.

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Great Blue Heron, Inglewood Bird Sanctuary, October 16, 2016. The herons have usually all migrated by mid-October, but a few may stay later.

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Harris’s Sparrow, seen at the south end of the big bridge over the Elbow River in the Weaselhead on October 16, 2016. The bird was seen for at least a week, from October 16 to October 25. These Sparrows mostly migrate well east of Calgary and are a bit of a rarity here. They sometimes overwinter, so it is worth looking for.

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American Tree Sparrow. These arctic breeders are passing through here now and some overwinter here.

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Dark-eyed Junco. These sparrows are pretty common here in the winter and can be seen in residential areas right now, often feeding on the ground under bird feeders.

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American Robin bathing.

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American Robin. They passed through here on migration in huge numbers a few weeks ago, but there are always quite a few that overwinter here, mostly in the river valleys.

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Northern Flicker (male). A migratory woodpecker, but again there are always lots in Calgary in the winter – either some local breeders that overwinter, or birds that bred farther north and migrated this far. They will readily come to suet and nut feeders.

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Downy Woodpecker (male). A year-round resident that also will come to feeders.

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Coyote.

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Black-backed Woodpecker. A bit of a rarity in the city, they are occasionally seen in the west end of Fish Creek Park, from Bebo Grove to Shannon Terrace. This one was photographed there on October 23, 2016.

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Pileated Woodpecker (male). Another resident woodpecker.

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Rough-legged Hawk. This is the common buteo in our region in the winter. They have arrived in good numbers from their northern breeding grounds. Most commonly seen outside the city, especially west of the city.

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Black-capped Chickadee. Year-round resident.

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Muskrat. They are active all winter in open water.

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Mule Deer buck.

See more of Tony’s Photos on his Flickr page.

Share your bird photos from the Calgary area. Just email them to birdscalgary@gmail.com.

Terry’s Travels: The Hills Are Alive With Birds

By Terry Korolyk

Living in the south end of Calgary since 1993, I have had much cause to bird and explore the area which I call the “Hills” which is directly south of Calgary. For birding purposes, it offers a fairly widespread type of habitat. We could probably define the area as south of Spruce Meadows Trail and bounded on the west by Highway 22; on the east by Highway 2A, and, on the south by Highway 549.

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Starting in the southwest corner of the Highways 2A-Spruce Meadows Trail junction is a fairly well-birded and well known slough known to some as Sheriff King Slough, because it is actually on Sheriff King Street accessed from Spruce Meadows Trail. In the days of some of Calgary’s older birders in the 1970s and 1980s, it was known as the Priddis Radio Towers Slough. The past few years have seen the slough attain fairly-high water levels due in large part to the City’s Water Management practices because of the 2007 and 2013 floods. Prior to 2007, the slough held low water levels. Then, it was probably one of the best shorebirding sloughs in our area attracting all the basic migrating shorebird species such as Semipalmated,  Baird’s, Least, and, Pectoral Sandpipers, and, both, Greater and Lesser Yellowlegs and Solitary Sandpiper. Uncommon species found there included Western Sandpiper (more than once), Red-Knot, and, White-rumped Sandpiper. It also held most of the common Duck species.

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Adult Red-necked Grebe. Common Summer resident on Sheriff King Slough. April 28, 2016.

These days the slough is now almost the complete reverse of what it used to be. Water levels are now too high to hold migrating shorebirds and it is almost completely devoted to waterfowl. Eared Grebes have been communal nesters here in recent years, and, both Red-necked and Pied-billed Grebes really took to the slough in 2015 and 2016. Ospreys are resident around the slough and Double-crested Cormorant, a species that is rapidly-expanding its range in the Calgary area, can be found here. Almost all the basic Duck species and Canada Goose are resident. Great Blue Heron should be somewhere around, and, recently Black-crowned Night Heron, has been expanding its range and has slowly crept into some waterbodies along the eastern perimeter of the area. Breeding has not been confirmed yet at Sheriff King Slough.

South of Sheriff King Slough lies agricultural land and the Pine Creek valley. Directly south of the Pine Creek valley; hilly, forested land is inaccessible, but, on this area’s west flank lies the Sirocco Golf Course. Remainder of the area of the Hills in the east is predominantly agricultural land, marsh, and, some woodland. Being near Spruce Meadows, naturally, there are many Stables and other such businesses devoted to Equestrian activities. Westward from Spruce Meadows lies Lloyd Lake formerly known as Red Deer Lake. Lloyd Lake is an outstanding location for seeing marsh and other water-loving birds and in recent years has held huge colonies of Franklin’s Gulls, Eared Grebes, and,  American Coots. Public access, however, is no longer allowed at Lloyd Park, and, one must pay to gain access.

Between Spruce Meadows and Lloyd Lake, Highway 773 runs southward through the Hills bisecting the area as far as Highway 549 which continues westward to Highway 22. The central and western parts of the block offer some of the most stunning scenery in the Calgary area. The further westward you travel, the more you climb in altitude. As well, from the central section westward, there are some densely forested tracts and a variety of sloughs  and other habitats. Near the western border, 192 Street  bears directly northward from Highway 549 taking you through open grassland in to increasingly more forested terrain, then more grassland, ending up with mixed forest and Coniferous growth near Spruce Meadows Trail.

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Male Bufflehead photographed on a small marshy pond in the west end of the Hills. April 23, 2013.

Considering much of the Hills is open hilly territory, birds encountered in this type of habitat include Savannah, Clay-coloured, and Vesper Sparrow. There are many Bluebird Trails along the roads that wind their way through the hills meaning, of course Tree Swallows and Mountain Bluebirds. Black-billed Magpies are year round residents and breeding season sees them joined by American Crows. Common Ravens are a daily sight, many of them riding the ridgetops and valleys as they come and go from the Landfills or other attractions to the east.

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Male House Wren. Found in large numbers in the Hills. May 18, 2013.

Common birds of the deciduous woodlands are American Robin, Yellow Warbler, Western Wood Pewee, Least Flycatcher, Baltimore Oriole, American Goldfinch, and, House Wren. In fact, the Hills could very well be the House Wren capitol of Alberta. Brewer’s Blackbirds line the roadsides south of Sheriff King while Red-winged Blackbirds are common marsh dwellers with large colonies at Lloyd Lake and at the large marsh on Spruce Meadows Way. Yellow-headed Blackbirds are not as common. Sora Rails are also common marsh dwellers.

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Male Cinnamon Teal. One of the common teals found in one of the shallow ponds in Dewinton area and in the west end of the Hills. June 6, 2013.

All of Green-winged, Blue-winged, and, Cinnamon Teal are the common ducks of shallow, muddy pools, particularly on the east side of the block. This holds true on the same waterbodies of the west end. Deeper, larger waterbodies in the west end can hold Lesser Scaup, Bufflehead, American Coot, Ruddy Duck and others. The serene woodland marsh and pond at the south end of 160 Street may be the only waterbody in the area that annually hosts Canvasback. Sloughs in this extreme more pristine west end may also host Ruddy Duck, Ring-necked Duck, Hooded Merganser, Barrow’s Goldeneye, and Horned Grebe.

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Gray Catbird with Dragonfly. August 3, 2013.

Some songbirds that can be found in this wilder west end include Gray Catbird, Lincoln’s Sparrow, Song Sparrow, Rose-breasted Grosbeak, Orange-crowned Warbler,  Yellow-bellied Sapsucker, Pileated Woodpecker,  and, Tennessee Warbler which seems to be ever expanding its range eastward from the foothills. Cedar Waxwing can be seen flycatching  around almost any waterbody in the west end, and, Alder Flycatcher can be found in the Willows around the marsh at the south end of 160 Street. Both HAMMOND’S FLYCATCHER and Pacific-Slope Flycatcher have been seen in migration in the willows on the east side of this slough while another sighting of interest here was a flock of more than 30 Eastern Kingbirds flycatching at this slough one day in the Fall of 2015.

Some other interesting songbird sightings in the hills include Crossbills along the north stretch of 192 Street; a LOGGERHEAD SHRIKE at the Springwell Farms Ponds at 64 Street and 242 Avenue S.W.; Sprague’s Pipits some years in the open grasslands; a BREWER’S SPARROW one year in June on the high south-facing slope on 1119 Drive starting the descent down to 192 Street; PURPLE MARTINS at an acreage off 160 Street on the south descent; a Western Kingbird just west of Springwell Farms; Say’s Phoebes; a Provincial record late Fall Eastern Phoebe(Sept. 25, 2008) at a small pond in the southeast corner of the 1119 Drive-192 Street intersection, and, a reported VAUX’S SWIFT at an acreage south of Spruce Meadows.

To be watched for is BLACK-HEADED GROSBEAK. This species, which used to be found only in the extreme southwest corner of the province, seems to have been slowly pushing northward through the foothills, being reported now almost annually somewhere southwest or northwest of Calgary. In the Summer of 2016, a bird was clearly heard singing across the road from a marsh on 192 Street just south of 242 avenue. At a marsh further south of that location, a bird that sounded like a SUMMER TANAGER sang in June of 2013.

There have also been many interesting non-Songbird records in the Hills. For instance one cool November morning I was driving to a nearby Shopping Centre when I noticed a Loon flying above the car off to the left. It was not that high off the ground, but, I was unable to get a clear look at it, but was able to see that in the direction it was going it had a very good chance of coming down in Sheriff King Slough which was only a couple of miles further southward. I dropped my wife off to shop and went over to check, and, sure enough, there was the Loon alright, but even better, it was a RED-THROATED LOON, the most uncommon Loon in the Calgary area other than Yellow-billed.

On March 27, 2016, I was birding in the Hills. One of my regular stops was a large dugout with an island on the north side of 242 Avenue just west of Springwell Farms. At this dugout there is a fairly large contingent of resident Canada Geese who have been inhabiting the site for the past few years. They are incredibly faithful to the site and have returned year after year to raise their young. However, For some reason, this site has proved attractive to 2 species of Cackling Geese in Spring migration. One of them is the Minima subspecies which is the smallest of the 4 basic Cackling Gull morphs and is from western Alaska. The other is from even farther away, the Aleutian Islands. I know of only 1 prior record of this species in Alberta that being in the Fall of 2007 in Calgary. Latin name for the ALEUTIAN GOOSE is Branta Hutchinsonii Leucoparaiea. But, we won’t stop with those 2 subspecies, the dugout has also played host to the common Hutchinson’s Canada Geese which breeds in the Canadian Arctic and migrates through the prairie east of the Front Ranges in large numbers in some years. Here is a picture of the ALEUTIAN GOOSE.

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Aleutian Goose (Branta Hutchinsii Leucoparaiea). March 27, 2016.

Another sighting of interest occurred in the summer of 2009. I came across what looked like a juvenile RED-BREASTED MERGANSER on the 160 Street pond. This would have been amazingly unusual in the months of June and July. I could recall only one record previously of a RED-BREASTED MERGANSER here in the summer months and that was a bird on Railway Slough in the Irricana Sloughs. If I recall correctly that would have been in the 1990s.

Yet another unusual sighting amongst the non-Songbirds occurred during a Calgary area May Species Count. I believe it was early in the new millennium. It was drizzling rain all day and at the time I was on Sheriff King Street. I could see some California Gulls in a fallow field off to the west. A different bird from them was in the same field perhaps a hundred metres or so to the north. It had a black cap and was about Gull size and was watching the California Gulls. Through the rain I could see that the bird was a PARASITIC JAEGER! Well, one couldn’t ask for a better bird than that on a May Species Count.

Other sightings of interest include a ROSS’S GOOSE and a Greater White-fronted Goose on Sheriff King Slough and an immature Snow Goose in with Canada Geese foraging in a stubble field on Sheriff King Street. In the 1990s, an adult GREAT EGRET was found in a wetland at the junction of Highway 2A and 194 Avenue in south Calgary. After a couple of days, the bird left the wetland and flew westward into the Hills and was seen flying parallel to 226 Avenue at the Highway 773 junction.

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Female Rough-legged Hawk.

In the Fall of 2015, we were returning home from a trip through the Hills along Highway 773. I was almost completely stunned to see an adult Ferruginous Hawk perched on a fencepost at the 4-Way Stop. This was the first time I had seen that species south of Calgary. This leads us to another class of birds to deal with; the Raptors. Swainson’s Hawks and Red-tailed Hawks are the 2 common Buteos of the area. You should see Ospreys at Sheriff King Slough and both Sharp-shinned and Cooper’s Hawks can often be seen in migration soaring over the hilltops. Northern Harriers are not common, but are there. Northern Goshawk is resident in the west end of the area, and, occasionally, some birds venture further east in to the open hills in search of prey. Rough-legged Hawks can be found in the Hills from Fall to Spring, but, numbers vary from year to year. Golden Eagles are occasionally seen in the block. Peregrine Falcons have been seen passing through and one can have a chance to find a Gyrfalcon somewhere in the area. Areas where Gyrs have been seen most often are along the open fields off Sheriff King Street and along the valley along 226 Avenue and along the east-west section of Highway  773.

On Red-tailed Hawks, the mature Balsam Poplars lining 210 Avenue west of Sheriff King Street were the first location in southern Alberta where dark morph Red-tailed Hawks were confirmed as breeding. That was in 2007. Since that time a mixed pair of Red-tails, one bird dark and the other light, were seen in 2 successive years, 2013 and 2014, over heavily-forested terrain off 192 Street. In the Summer of 2013, a dark morph Red-tail, probably the bird from the mentioned pair was seen over the 160 Street pond. In the Summer of 2016, an intergrade light morph-dark morph bird was seen perched in a remote Aspen on a road through the Cross Conservancy. Considering the fact that there have been other such mixed pairings breeding within the Calgary area within the past few years, it is now possible to see an assortment of differently-plumaged Red-tails in the Hills even in breeding season. In migration, the Hills is an excellent site to see migrating Red-tails in many different plumages. Rarely, a dark morph bird may overwinter in the area.

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Adult Bald Eagle at Sheriff King Slough in late Fall. Dec. 8, 2012.

Bald Eagles are not resident in the Hills, but, they can be seen in the Spring hunting Richardson’s Ground Squirrels, and, in late Fall, they can be seen hunting waterfowl at fast freezing waterbodies, usually Sheriff King Slough. But this activity is not confined to Bald Eagles. One year  I watched a pair of immature Northern Harriers set up shop at Sheriff King with only a few openings left in the ice holding lingering waterfowl. Waterfowl remains were many on the surrounding ice.

One family of birds that could probably do with more study in the Hills is the Owl family. Great Horneds are resident, and, Northern Hawk Owls are sometimes spotted in the semi-open areas of the west end.

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Trumpeter Swans on one of the Springwell Farms ponds. March 25, 2016.

One final point I think that would interest birders is the fact that some of the waterbodies in the area are favoured amongst migrating Trumpeter Swans. One very reliable site to watch these snow white birds are the ponds at Springwell Farms. The ponds have also held Snow Geese.

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Wilson’s Snipe. Many of these were brought out in the open by winter weather on October 8. April 20, 2015.

Fall Migration, 2016–

The most important bird that has come to light since the most recent Terry’s Travels was the discovery of a Hummingbird that was coming to a home southwest of Longview, Alberta. I noticed the photograph of the bird on the Alberta Birds Facebook page, and, investigating further, the bird most resembled an immature male Costa’s Hummingbird, which would be the Province’s only 3rd. record ever. The bird had been coming to this home for 2-3 weeks, but now has not been since Tuesday, October 4.

Four hundred Loons must have been quite a sight at Barrier Lake on Highway 40 in Kananaskis Country on Thursday, October 6. This came following our first blast of somewhat wintry weather. Three of the birds were Pacific Loon. To top it off, there were also 9 Surf Scoters there, and, an additional 30 at Lake Minnewanka in Banff National Park. A lone Pacific Loon has been at Glenmore Reservoir in Calgary since October 6 and both Surf and White-winged Scoters have been there almost daily. A female or immature BLACK SCOTER there on October 6 was a major find, but, unfortunately appears as though it was seen by only the person who found it.

Northern Gulls are finally starting to appear in our area. A Nature Calgary Field Trip found a 1st. year KUMLIEN’S ICELAND GULL; a 1st. year Herring Gull-Glaucous GULL hybrid, and, 5 1st. year Thayer’s Gulls at the Peigan Trail Gull Ponds below the City of Calgary Landfill on October 8. Another KUMLIEN’S GULL, this time an adult, was seen on the Bow River adjacent to the Inglewood Golf Course on Thanksgiving Day. An adult Mew Gull has attracted many observers to the Irrigation Canal opposite the Inglewood Golf Course for the past few days while 1 or 2 others were reported on Thanksgiving Day, one on the river by the Inglewood Golf Course, and, the other at Elliston Park in southeast Calgary.

According to reports, a large white Falcon in the Burnsmead area of Fish Creek PP on Sunday, October 2 may have been a white morph GYRFALCON which I know of only 5 previous reports in the Calgary area since 1987.

Rusty Blackbirds  are starting to show up in our area. A nice flock of 25 was discovered in an Irrigation Canal on Range Road  262 south of Township Road  270 southeast of Irricana on October 8.

A Harris’s Sparrow is being a big draw in an Edmonton park, while one was found in Bowmont Park in northwest Calgary on Thanksgiving Day.

The recent blast of Winter has had Wilson’s Snipe and Western Meadowlarks out in the open. A Nature Calgary Field Trip found a total of 32 Snipe and 8 Meadowlarks east of Calgary on October 8, while others also filed reports finding both Snipe and Meadowlarks.

Common Redpolls are new winter visitors here, while late-migrating shorebirds included a Baird’s Sandpiper and a Lesser Yellowlegs at McElroy Slough on Inverlake Road just northeast of Chestermere Lake on October 8, and, a Solitary Sandpiper, also at McElroy Slough, on October 5.

Until next time………………                                                 Terry Korolyk

Early October on the Irrigation Canal

Posted by Dan Arndt

Earlier this month I was able to take part in two walks with the Friends of Fish Creek out to the Irrigation Canal that runs parallel to the Bow River through south-east Calgary. Each day had its highlights and the overall experience was really quite incredible. While there’s not quite as much activity this late in the month, the week following the initial drainage of the canal can be quite productive for a wide variety of birds. From shorebirds to gulls to songbirds, the whole walk tends to be non-stop flying, foraging and feeding on everything living in the trees along the canal and the mud within it.

Irrigation Canal - October 6th and 8th, 2015

Irrigation Canal – October 6th and 8th, 2015

Two of the most common birds we often find along this walk are the two most easy to overlook, the American Robin and the European Starling. Their colors and contrasts really stand out on a bright clear fall day, especially with the right background!

IMGP1669American Robin – ::Aperture: ƒ/7.1|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/500s|

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European Starling – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 500|Shutter speed: 1/640s|

The Ring-billed Gulls are also one of the most numerous birds we find along the canal, aside from waterfowl, and until recent years, we’ve almost always had Bonaparte’s Gulls. We’re always on the look out for something a little more unusual, but so far we’ve failed to turn up anything less common.

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Ring-billed Gull – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 640|Shutter speed: 1/1000s|

The main draw along the canal are the ever-present Hooded Mergansers. It’s not unusual to find at least a few males and at least a couple females cruising around feeding on the small invertebrates and fish in the main channel of the canal.

IMGP1743male Hooded Mergansers – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1250|Shutter speed: 1/1000s|

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male Hooded Mergansers – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 400mm|ISO: 1600|Shutter speed: 1/1000s|

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female Hooded Mergansers – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/800s|

This late in the season we also get a good number of Greater Yellowlegs (and very rarely an occasional Lesser Yellowlegs). Even more interesting are the occasional falcons and raptors hunting them, like this female Merlin that took a dive at a large group of yellowlegs, flushing the majority of them!

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Greater Yellowlegs – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 640|Shutter speed: 1/800s|

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female Merlin – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 320|Shutter speed: 1/800s|

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female Merlin in flight – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/800s|

In addition to the Merlins we saw on both days at the canal, on the 8th we had a couple of interesting fly-overs. A Rough-legged Hawk and an immature Golden Eagle soared over on some high thermals, offering a few opportunities for us to identify them from below. Golden Eagles aren’t particularly common within the city limits, so my first thought was that it was an immature Bald Eagle. After reviewing the photos though, it was most certainly a Golden, which was quite an exciting find! Those broad, squared off wings, golden nape, and white patches in the middle of the underwing are really good features to look for on an immature Golden Eagle.

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Rough-legged Hawk – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/1000s|

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Golden Eagle – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/1000s|

New for me this year was a bit of variety in the makeup of shorebirds, with a fair number of Long-billed Dowitchers making an appearance, which we identified by their flight calls, and a lone American Golden-Plover, which is yet another relatively rare bird in the area, especially within the city limits!

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Long-billed Dowitchers – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1250|Shutter speed: 1/1000s|

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American Golden-Plover and Greater Yellowlegs – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 800|Shutter speed: 1/1000s|

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American Golden-Plover – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 800|Shutter speed: 1/1000s|

Our last bird of the day, and maybe the last members of this species of the season, were a small number of Double-crested Cormorants. While these birds are fairly uncommon around the city, they’re not quite as loathed here as they are in eastern Canada, so most of us still enjoy seeing them from time to time along the Bow River.

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Double-crested Cormorant – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 800|Shutter speed: 1/800s|

While there aren’t usually too many mammals along this route, we did find a lone Muskrat on both of our outings, in almost exactly the same spot north of the Gosling Way bridge over the canal. He (or she) was foraging and collecting grasses and stems to store away for the winter.

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Muskrat – ::Aperture: ƒ/8|Camera: PENTAX K-5|Focal length: 500mm|ISO: 1600|Shutter speed: 1/800s|

And that’s it for another week here on the blog. Have a great one, and good birding!

Another no owl day at Griffith Woods Park

Posted by Dan Arndt

Our walk this week returned to Griffith Woods, in search once again of the Great Gray Owl that had been a regular visitor there for well over a month now, as well as the Great Horned Owls and even a Northern Pygmy Owl that had been seen and heard there recently. The week got off to a good start, with Monday’s group having no trouble finding the Great Gray Owl, and the Tuesday group only missed it by a less than an hour before it flew off deeper into the dense spruce forest that are the hallmark of Griffith Woods.

Griffith Woods February 16, 2014

Griffith Woods
February 16, 2014

The story throughout the day was that of distant birds and minimal photo opportunities, but I was very pleased that I was able to snap the shots that I did. When I downloaded my camera card at home, I found that I had only taken 31 shots in the course of the outing, so to have  a 25% “keep” rate I think is pretty good!

The first real opportunity came when we spotted a small flock of Bohemian Waxwings high up in a spruce tree, and I was able to capture a pair of them breaking off from the group showing their rufous undertail coverts and the bright lemon yellow on the tip of the tail feathers.

Bohemian Waxwings Pentax K-5 + Sigma 150-500@500mm 1/640sec., ƒ/6.3, ISO 400

Bohemian Waxwings
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/6.3, ISO 400

Bohemian Waxwings Pentax K-5 + Sigma 150-500@500mm 1/1250sec., ƒ/6.3, ISO 800

Bohemian Waxwings
Pentax K-5 + Sigma 150-500@500mm
1/1250sec., ƒ/6.3, ISO 800

We hunted along the trail under the power lines for any sign of the Great Gray Owl that was our quarry, but the only evidence we were able to find of it was this hunting impression in the deep snow, showing the impression of the head and wings as the owl hunted one of many unfortunate voles that had become its dinner.

Great Gray Owl hunting impression Pentax K-5 + Sigma 150-500@150mm 1/800sec., ƒ/5, ISO 80

Great Gray Owl hunting impression
Pentax K-5 + Sigma 150-500@150mm
1/800sec., ƒ/5, ISO 80

Never let it be said that I know everything there is to know about all of the parks we visit. This week’s surprise was the discovery of another small pond on the north-west end of Griffith Woods Park. All it really would have taken was for me to look at one of the many maps that I’ve published even here on this website to actually notice its presence, but thankfully Gus Yaki came to the rescue again and showed us where all the Canada Geese we had seen all morning were flying to. Also on this pond was a lone Common Goldeneye, and much to our surprise and delight was a solitary, and very uncharacteristically quiet, Blue Jay along the hedgerow behind one of the nearby houses.

Canada Geese Pentax K-5 + Sigma 150-500@500mm 1/1250sec., ƒ/6.3, ISO 640

Canada Geese
Pentax K-5 + Sigma 150-500@500mm
1/1250sec., ƒ/6.3, ISO 640

Common Goldeneye Pentax K-5 + Sigma 150-500@500mm 1/1250sec., ƒ/6.3, ISO 400

Common Goldeneye
Pentax K-5 + Sigma 150-500@500mm
1/1250sec., ƒ/6.3, ISO 400

Blue Jay Pentax K-5 + Sigma 150-500@500mm 1/1250sec., ƒ/6.3, ISO 400

Blue Jay
Pentax K-5 + Sigma 150-500@500mm
1/1250sec., ƒ/6.3, ISO 400

Another nice surprise was a pair of Dark-eyed Juncos feeding underneath a spruce on the way back into the park after we had finished exploring the pond.

Dark-eyed Junco Pentax K-5 + Sigma 150-500@500mm 1/500sec., ƒ/6.3, ISO 1600

Dark-eyed Junco
Pentax K-5 + Sigma 150-500@500mm
1/500sec., ƒ/6.3, ISO 1600

And then the wind picked up, and everything got quiet. While we retreated deeper into the wooded trails, the birds came fewer and further between, and only stayed in sight for mere moments at a time. Even our last species of the day, this Rough-legged Hawk, disappeared a few seconds after I spotted it soaring high above the nearby homes, but enough to positively identify it with its distinct dark wrist patches.

Rough-legged Hawk Pentax K-5 + Sigma 150-500@500mm 1/640sec., ƒ/6.3, ISO 320

Rough-legged Hawk
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/6.3, ISO 320

And so wraps up another week of the Friends of Fish Creek Winter Birding course. Next week we head back to Bebo Grove in search of last week’s quarry, the American Three-toed Woodpecker, along with another Great Gray Owl, a Barred Owl or three, and hopefully a Northern Saw-whet Owl!

Have a great week, and good birding!

Leucistic Rough-legged Hawk

Posted by Matthew Sim

We’ve done posts here on this blog about leucism before, which is when a bird has reduced pigmentation, meaning it has more white in it’s feathers than normal for the species. We’ve had some examples before, including a leucistic House Finch, American Robin, Ruby-throated Hummingbird and others. For the past few months, Calgary has had a very neat leucistic bird in the area. This Rough-legged Hawk frequents the area around Highway 40, just west of Calgary.

Leucistic Rough-legged Hawk

flying

Now compare this with a more normal Rough-legged Hawk.

Rough-legged Hawk

On January 1rst, I found this leucistic hawk on Highway 40 near its intersection with Range Road 40.

Birds of Frank Lake

Thank you to David Lilly for sending us these amazing pictures taken at Frank Lake on April 9/11.

Black-crowned Night-Heron

Tundra Swan displaying

Rough-legged Hawk

Posted and species identified by Pat Bumstead