The hummingbirds at Presidio Park were so fun to watch. I first noticed them as I was walking down the Park Presidio Blvd. corridor of sequoia redwoods. I kept hearing this weird wheezing noise and would stop to look for the bird but couldn't find it. It wasn't until I got into the main park, near Mountain Lake, that I realized that wheezing noise was coming from the hummingbirds!
This was another tricky ID for me because I had trouble finding pictures where the black cap comes down the nape of its neck as you can see in the first picture.
I also saw my first Chestnut-backed Chickadee:
American Coot:White-crowned Sparrow: