We have a large population of black-headed juncos (sparrow family) in our Seattle yard. Also Black-capped chickadees, Towhees and nuthatches. The nuthatches are very streamlined and fly so quickly among branches without collision it seems miraculous.

They all pay pretty close attention to us when we are out in the yard. The juncos in particular, probably because they like to build nests directly in my garden and I respond by giving them mealworms when their chicks hatch.

[edited for typo]