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Furry Friday: Young Moose

Diane Dahlin photographed these two young Moose west of Calgary on April 30, 2016.

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::Aperture: ƒ/5.8|Camera: Canon PowerShot SX40 HS|Focal length: 150.5mm|ISO: 100|Shutter speed: 1/200s|

You can see more of Diane’s photos at I Kiss Horses Photography.

Furry Friday: Tony’s Mammals

A selection of mammals seen in and around Calgary in the last few months.

All photos by Tony LePrieur.

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Coyote pair, Weaselhead, October 18, 2015.

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Porcupine, Inglewood Bird Sanctuary, October 25, 2015.

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White-tailed Deer, Carburn Park, January 31, 2016.

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White-tailed Deer, Carburn Park, January 31, 2016.

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White-tailed Jackrabbit, Queen’s Park Cemetery, January 31, 2016.

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Coyote, Weaselhead, January 31, 2016.

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Meadow Vole, Weaselhead, February 27, 2016.

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Meadow Vole, Weaselhead, February 7, 2016.

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American Mink, Fish Creek Park, November 16, 2015.

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Long-tailed Weasel, Fish Creek Park, November 15, 2015.

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Long-tailed Weasel, Fish Creek Park, November 15, 2015.

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Long-tailed Weasel, Fish Creek Park, November 16, 2015.

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And finally, a Feral Rabbit at Frank Lake, April 10, 2016.

Spring Birding Course 2016

The Friends of Fish Creek Provincial Park Society is now taking registrations for its popular Spring Birding Course. This 12-week course starts March 28 and runs until the end of June. You can choose to go out one or two days per week. Field trips, which take place in a variety of parks throughout the city, last 2.5 to 3 hours.

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By the time the Spring course starts, Mountain Bluebirds will be passing through Calgary on migration. Photo by Dan Arndt.

Once again there is a very nominal $5 fee for youth 16 or younger accompanied by a registered adult. This is a great opportunity for parents to take their kids birding and learn about nature in our city!

For more information and to register, go to this page.

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Great Horned Owls are already nesting in Calgary. Join the FFCPP Spring course to see the owlets hatch and fledge. Photo by Dan Arndt.

Sunday Showcase: Summer Birds

Some summer birds and mammals from Calgary, taken in late June 2015. All photos by Tony LePrieur.

image1Redhead chicks.

image2American Coot chicks and adult.

image3Male Yellow Warbler.

image4Savannah Sparrow.

image5Yellow-rumped Warbler.

image1Great Blue Heron.

image2Black-crowned Night-Heron.

image3Green-winged Teal.

image4Barn Swallow.

image5Beaver.

Furry Friday: City Foxes

Posted by Bob Lefebvre

I recently found a Red Fox den in the city of Calgary. There are five kits, and although I didn’t have my camera when I found them, I returned later and was able to get a couple of photos before the adult spotted me. The den is in a very exposed and quite busy spot, so I didn’t want to stay and disturb them.

IMG_1337Adult Red Fox with one kit at den.

IMG_1343Red Fox kit.

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More spring migrants at South Glenmore Park!

Posted by Dan Arndt

Our last outing with the Friends of Fish Creek Winter birding course on March 29 was to South Glenmore Park in hopes of seeing some migrant swans, some early sparrows, and who knows what else! We did have a few good sightings, and it rounded out the course perfectly in my opinion!

South Glenmore Park - March 29, 2015

South Glenmore Park – March 29, 2015

 

It seems like not a week goes by where we haven’t been seeing at least one Northern Shrike on our walks, and soon after we started, we heard a commotion in the spruce trees above us and spotted not one, but two of them up there! One appeared to be an adult, while the second, which I was able to get a photo of, looked a little duller, which would indicate that it’s likely an immature bird.

Northern Shrike Pentax K-5 + Sigma 150-500@500mm 1/640sec., ƒ/8.0, ISO 320

Northern Shrike
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/8.0, ISO 320

We had a good number of Trumpeter Swans fly by us heading to the open water on the west end of the Glenmore Reservoir, but it was nice to have a pair fly by a bit closer to us, trumpeting away as they flew!

Trumpeter Swans Pentax K-5 + Sigma 150-500@500mm 1/640sec., ƒ/8.0, ISO 400

Trumpeter Swans
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/8.0, ISO 400

While the rest of the reservoir was still frozen over, we didn’t really get too much of a look at the birds on the far west end, so we headed up onto another parallel pathway to feed some birds, and we did also hear the beautiful song of the Golden-crowned Kinglet, the first I’d heard since January. There seemed to be far fewer of them around this year than in past years, so it was nice to see them again up close!

Golden-crowned Kinglet Pentax K-5 + Sigma 150-500@500mm 1/800sec., ƒ/6.3, ISO 3200

Golden-crowned Kinglet
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/6.3, ISO 3200

Golden-crowned Kinglet Pentax K-5 + Sigma 150-500@500mm 1/800sec., ƒ/6.3, ISO 3200

Golden-crowned Kinglet
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/6.3, ISO 3200

We also put some seeds out for the chickadees and nuthatches, and had a few Black-capped Chickadees and at least three Red-breasted Nuthatches come in to stock up their supplies.

Red-breasted Nuthatch Pentax K-5 + Sigma 150-500@500mm 1/500sec., ƒ/8.0, ISO 3200

Red-breasted Nuthatch
Pentax K-5 + Sigma 150-500@500mm
1/500sec., ƒ/8.0, ISO 3200

So after a relatively quiet morning with very few birds up close to us, it was nice to almost literally stumble over this Snowshoe Hare. Unlike the one we found a few weeks earlier, this one was beginning the transition out of its winter coat and into the more typical brown summer coloration. Even still, it was still difficult for many of our group to see unless it was directly pointed out to them.

Snowshoe Hare Pentax K-5 + Sigma 150-500@500mm 1/800sec., ƒ/8.0, ISO 640

Snowshoe Hare
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 640

In addition to the newly arrived kinglets, swans, and gulls of the past few weeks, we also found a number of aspen budding out in their fresh catkins, better known of course as pussy willows. One of the signs of spring that’s almost as reliable as the first Red-winged Blackbirds and Red-tailed Hawks!

Pussy willows Pentax K-5 + Sigma 150-500@500mm 1/800sec., ƒ/8.0, ISO 640

Pussy willows
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 640

Our very last sighting was a trio of Blue Jays, right in the exact same spot where a few other groups had seen them earlier in the week. It’s quite possible that there’s a nest down below the ridge at this point, but with how dense the willow and aspens are in that area, it’d be nearly impossible to find it.

Blue Jay Pentax K-5 + Sigma 150-500@500mm 1/800sec., ƒ/8.0, ISO 200

Blue Jay
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 200

And with that, our winter birding course comes to an end. In fact, yesterday, April 4 was our first outing for the spring course, so get ready for migration to ramp up over the next few weeks and the colors to really start to brighten up!

Have a great week, and good birding.

Furry Friday: Flying Squirrels

Update: For the first time, the group (45 people) did not get to see the Flying Squirrels on March 20, and we didn’t hear any Saw-whet Owls either. It was a very humid, misty, foggy night with the temperature near freezing, so that may have had something to do with it.

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Posted by Bob Lefebvre, all photos by Dan Arndt

Next Friday, March 20, Dan Arndt and I will lead the annual Nature Calgary outing to the Weaselhead to see Northern Flying Squirrels. This is a popular outing, likely because people don’t often get an opportunity to see these animals. It can also be challenging, because we often have to wait for over an hour in the cold and dark before the squirrels make an appearance. But if you are patient there is a very good chance you will see these elusive creatures. In over a dozen trips to see them, I think we have only missed them twice. We generally get to see them glide, and we see them up close at a particular bird feeder which they apparently visit each night, looking for seeds that the birds have overlooked (we re-stock the feeder just before the field trip so that they will stay and feed for a while).

For birders, we often hear Northern Saw-whet Owls and sometimes other species.

If you want to join us, we meet at the north Weaselhead parking lot, 37 Street and 66 Avenue SW, at 8 pm, Friday March 20. Here is the information about the field trip on the Nature Calgary site.

Many people are not even aware that we have flying squirrels in Calgary (I wasn’t until we saw one at this location in 2008), but they are in fact common throughout the boreal forest, and probably in the city as well. Because they are nocturnal they aren’t often seen.

Most of the photos below were taken last spring on one of our scouting trips. We set up in the bush within ten feet of the feeder, and were able to get great looks. All photos by Dan Arndt, March 26, 2014, except as indicated.

Below is a Northern Flying Squirrel approaching the feeder after landing higher in the tree. You can see the wide flattened tail which acts as a rudder and as an additional gliding surface. (This photo taken March 23, 2012, by Dan Arndt.)

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The next shot shows the large eyes and the furred flap of skin with a dark edge between the wrist and ankle. This is called the patagium, and it forms the main gliding surface when the legs are extended. (This photo was taken by Dan Arndt on March 17, 2012.)

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Below, a Northern Flying Squirrel at the feeder:

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Below, Feeding. Note the patagium extending from the forward part of the wrist. There is a cartilaginous rod several centimeters long (inside the patagium) jutting out from the wrist, which helps to support the skin.

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The remaining photos were actually taken before the 2014 flash photos above. We use a red light to locate the squirrels. Apparently they can’t see these wavelengths, so it doesn’t disturb them, and we can see them approach. Once they are feeding they settle in and are more tolerant, and do not usually leave even when you use flash photography or approach them more closely.

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Here is another post that Dan wrote after our 2012 field trip: Barred Owls and Flying Squirrels.

More facts about the Northern Flying Squirrel:

  • occurs throughout the forested regions of Canada, except Vancouver Island and the island of Newfoundland
  • absent from the treeless arctic and great plains
  • the similar Southern Flying Squirrel occupies the eastern US and parts of southern Ontario and Quebec
  • the Southern species is rapidly expanding northwards, and is hybridizing with the Northern
  • since Northern Flying Squirrels are nocturnal and shy, they are often thought to be scarce, but are in fact well distributed and common
  • with a population density of 0.1 to 3.5 squirrels per hectare, they likely have the highest total population of any squirrel species in Canada. This is a minimum of 260 squirrels per square mile in the poorest parts of its range, up to over 900 per square mile in food-rich areas
  • they are active all year, and breed from March to June
  • usually nest in tree cavities (abandoned nests of other squirrels or birds), but may construct a drey in summer
  • are clumsy walkers
  • can glide up to 65 metres, dropping about 1 metre for each 2 metres of glide length
  • are very maneuverable, able to make a 90-degree turn in flight, or even to corkscrew around a tree and land on the same tree at a lower point
  • after landing on a tree, they immediately scurry around to the other side, in case they are being pursued or watched by a predator
  • are preyed upon by owls, hawks, weasels, coyotes, raccoons, bobcats, lynx, wolves, foxes, cougars, and domestic cats
  • are especially vulnerable to large nocturnal owls like Great Horned and Barred Owls
  • in Oregon, Northern Flying Squirrels make up about 50-60% of the diet of the endangered Spotted Owl, which consumes an average of 260 squirrels per owl per year
  • Northern Flying Squirrels eat mainly fungi (especially truffles) and lichen, along with seeds and nuts of trees. They supplement this with fruit, tree sap, buds, insects, small birds and eggs, small mammals, and carrion
  • they are a keystone species, vital to their environment due to their feeding activities which disperse tree seeds and the spores of symbiotic fungi throughout the forest

Join us next Friday for a chance to see these amazing animals!

My main source for information on Northern Flying Squirrels was the excellent book The Natural History of Canadian Mammals by Donna Naughton.