Greetings,

Here's one for the AOU experts out there:

My Sibley's (copyright 2000) lists the Tufted Titmouse (Baeolophus bicolor) as a single species with two subspecies, the Black-Crested (Mexican) and the Northern (Tufted) He also comments in the notes that these were formerly two separate species.

Along comes my brand new Cornell Labs Birder's List & Diary (copyright 2003) with listings for Tufted Titmouse (B. bicolor) AND Black-Crested Titmouse (B. atricristatus) with no note describing them as subspecies. Cornell does point this distinction out in other cases throughout the book.

So what do we have here, two species or one?

-Rolan


Rolan Nelson
Fircrest, WA
rnbuffle at yahoo.com
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