18 August 2014 – Ruby-throated Hummingbird (another one)

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.

Screen shot 2014-08-18 at 11.03.54 AM

Regular readers will note a very similar post from yesterday, and a superficially very similar-looking bird. 

DSCF6743 DSCF6744 DSCF6745DSCF6751

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.

DSCF6748 DSCF6749

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.