What flycatcher is this?

West Palm Beach, FL

At first I thought eastern phoebe as they are very prevalent in South Florida in fall/winter, but then I noticed its belly is yellower than a phoebe's and it seems to have an eyering. No prominent wing bars, though. Help!

Thumbnail by tulycd
Northumberland, United Kingdom(Zone 9a)

It is an Eastern Phoebe first-winter (structure and plumage pattern fit), but with exceptionally bright yellow underparts - a mutation called 'xanthochromism'. First-winter Eastern Phoebes usually have a hint of yellow in the same area, but only a hint, not full-on yellow like this. Very smart bird, though!



West Palm Beach, FL

Thank you!

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