15_the_circle: (cottage sign)
15_the_circle ([personal profile] 15_the_circle) wrote2008-01-31 06:33 am
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aerobatics in 80 frames

[OT from cottage renovations]
[crossposted to [livejournal.com profile] hummingbirders]

it is interesting to learn that an Anna's Hummingbird chirp is produced by tail feathers (BBC) and fascinating to see an 80-frame overlay of one diving:

(click through this thumbnail for higher resolution image)


image: BBC
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