Another day, another window-killed hummingbird. This one was heading north when it met its end. This is the 10th hummingbird fatality, and the 180th overall.
Regular readers will note a very similar post from yesterday, and a superficially very similar-looking bird.
This one was more obviously a Ruby-throated Hummingbird. The following photo illustrates that the tailtip extends well beyond the wingtips.
Next, I examined the bill to look for corrugations indicative of a hatch-year bird. I can’t see any. This looks like an after hatch-year bird; plumage-wise, she’s female.
So I’ve got an AHY, female, Ruby-throated Hummingbird. I checked one last thing to clinch that identification – the shape of the 6th primary. Sure enough, it’s a perfect match for the shape indicated as “AHY/ASY” female Ruby-throated Hummingbird in Peter Pyle’s Identification Guide to North American Birds.
Bird-Window Collisions at OK State 