We have glanced at Yellow Rumped and Palm Warblers in the past, but I thought that I should put them side-by-side for you to see how similar and not they are. The Yellow Rumped is on the left and the palm on the right. This is the sort of stuff “birders” get excited about being able to spot. They look at eye rings, leg and bill color and shape also. Size and posture also help, and the really good ones recognize the variations in their songs.
Note the yellow crown on the yellow rumped and the yellow under wing and dark black and white wing feathers and tends to have a brown crown. Also Palm has a white/yellow line over its eye.
Notice the yellow rumped has dark streaking while the palm has barely visible streaking
Yellow rumped is yellow on top and very yellow. The palm warbler is yellow on top and bottom and it is a touch green/yellow
Notice the white pattern under the yellow rumped and compare to the palm warbler
Colorado bird Audubon variation…see white feathers above yellow on wing.
