When I am having a difficult time to identify a bird I remember the words of the wildlife photographer Paul Higgins " I am becoming less preoccupied with labeling birds and more experiencing them." I feel the same lately.
Well, I believe that I photographed a female Common Yellowthroat but I am not sure because this bird is a complete migrator. It migrates to Arizona, Mexico and Central America. I took her photos in the middle of November and it was getting cold.
On the first photograph she looks a little grouchy, but on the second the bird is more relaxed enjoying nice sunny morning.

