Image: The Ultimate Bird Drawing Throwdown Showdown Graphic featuring images of David Sibley and H. Jon Benjamin

Join BirdNote tomorrow, November 30th!

Illustrator David Sibley and actor H. Jon Benjamin will face off in the bird illustration battle of the century during BirdNote's Year-end Celebration and Auction!

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Sharp-tailed Grouse courtship dance

© neil fisher

"Countless male sharp-tailed grouse rapidly stamping their feet and rattling their tail feathers while spinning in circles all in an effort to win courtship rights. The noise created when dancing is a combination of stamping their feet 20 times per second and a very distinct 'cooing' call."