[texbirds] Re: Western Yellow-billed Cuckoo range
- From: Mark Lockwood <Mark.Lockwood@xxxxxxxxxxxxxx>
- To: "'texbirds@xxxxxxxxxxxxx' (texbirds@xxxxxxxxxxxxx)" <texbirds@xxxxxxxxxxxxx>
- Date: Fri, 11 Oct 2013 16:26:08 +0000
As Mary mentioned, this proposed listing for a population segment, nit a
taxonomic unit. There is no difference between the birds on the western Hill
Country and in the Trans-Pecos in morphology or voice. I suspect there are
very minimal difference with the overall population of Yellow-billed Cuckoos
from the extreme eastern portion of North America and those in the Southwest,
but those differences are not currently considered sufficient for there to be
more than one subspecies. At one time the birds in the Southwest were included
in a separate subspecies. The current taxonomy follows work by Duck Banks.
For those interested in reading the paper it can be accessed at SORA
(http://sora.unm.edu/).
Banks, R. C. 1988. Geographic variation in the Yellow-billed Cuckoo. Condor
90:473-477.
Mark
Mark Lockwood
402 E. Harriet Ave.
Alpine, Texas 79830
mark.lockwood@xxxxxxxxxxxxxx<mailto:mark.lockwood@xxxxxxxxxxxxxx>
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