The most reliable place to find hummingbirds in the city is the Weaselhead Nature Area in the SW. Tony LePrieur photographed both Rufous and Calliope Hummingbirds there, as well as other birds, on May 31, 2014.
Calliope Hummingbird – our smallest bird species.
Here’s a link to a previous post that shows where these birds nest.
Other birds of the Weaselhead:
Cliff Swallow at nest.
Cliff Swallows. They collect mud for their nests.