Warbler Identification: Blackpoll vs. Bay-breasted Warblers

When worrying about fall warbler identification, most birders think about the Blackpoll vs. Bay-breasted challenge.  This is for good reason; these two species can be very difficult to identify, if you don't know what to look for.  I won't discuss the identification of the adults, as that is fairly straight forward.  The first fall birds are the real challenge.

What to Look For

Blackpoll Warbler

-yellow/orange feet

-distinct streaking on sides, breast, and flanks

-white undertail coverts

-cold, yellow coloration overall

-wing bars bold, but not usually as bold as Bay-breasted
-head and body coloration do not contrast

First Fall Blackpoll Warbler
To see the photographer's photostream go to:  
http://www.flickr.com/photos/20birds08/4129328759/ 

To see the photographer's photostream go to:  
http://www.flickr.com/photos/faulkners_fowl_shots/6349860095/ 

Bay-breasted Warbler

-black feet

-buffy sides, usually showing a tinge of bay 

-streaking (if present) blurry and indistinct

-buffy to off-white undertail coverts

-greenish head contrasts with warmer coloration of chest, sides, and belly

To see the photographer's photostream go to:  
http://www.flickr.com/photos/pancamo/5691533783/ 

To see the photographer's photostream go to:
http://www.flickr.com/photos/jroldenettel/5210533924/

Now that wasn't too difficult, was it?  Most of the other warbler identification challenges are created by the sheer number of species of warblers that are possible.  With a little study, warbler identification will become much easier.

For a great warbler identification guide, buy the Peterson Field Guide to Warblers.  

-Eric