Chipping vs Clay-colored

Female Yellow Warbler?

Clay-colored sparrow?

Clay-colored Sparrow--white over eye, dark line behind eye, slight eye ring, pinkish bell, brown cheek, gray collar.

Male Downy woodpecker at nest hole in willow tree

Male Downy entering nest hole

Least Flycatcher? Eye-ring, grayish patch in front of eye, small bill with maybe a little yellow at the base of the lower mandible, possible trace of wing bars

Female Nashville Warbler?--gray head, distinct white eye-ring, yellow underside, going to white around legs, yellow undertail coverts

Not sure what is bird and what is willow catkin color, but chest and throat appear yellow.

No eye-ring on this bird

Nashville again? Eye-ring present and head looks grayish, but not as distinct--perhaps from lighting

Immature Indigo Bunting?