[cobirds] Black-chinned Hummingbird x Ruby-throated Hummingbird hybrids

Hello, Birders.

Here's an interesting recent paper from Colorado Birds' sister publication in Oklahoma:

http://tinyurl.com/bqb6rhc

This is the key result:

"During the course of this study, 30 adult male Ruby-throated hummingbirds, 77 adult male Black-chinned hummingbirds, and 11 male hybrids were banded. A total of 118 adult male hummingbirds were banded, with 9.3% of them being apparent hybrids. Banding 11 apparent male hybrids from 2006 to 2009 suggests that hybridization between the two Archilochus species in Oklahoma is widespread."

I think this has implications for birding in Colorado. We know that Black-chinned Hummingbird is rapidly expanding in eastern Colorado, and we've had multiple credible reports in the past few years of Ruby-throated Hummingbirds. Be on the lookout for hybrids!

Ted Floyd
tedfloyd57@hotmail.com
Lafayette, Boulder County, Colorado



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