Youtor
Blackchinned Hummingbird in Flight
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=UY5fgEW8Ruo
One of the most impressive examples of bird flight is seen in hummingbirds. Their extremely rapid wingbeats, ranging from 10-80 beats per second and unique figure-8 wing stroke, allow them to move in all directions and hover in place. Such rapid movement requires a lot of energy, meaning hummingbirds must eat frequently during the day or risk starving within a few hours. • This video accompanies Chapter 5, Avian Flight, Handbook of Bird Biology 3rd Edition from the Cornell Lab of Ornithology and Wiley Publishing. • http://birdbiology.org • Larry R Arbanas/Cornell Lab of Ornithology/Macaulay Library/464411
#############################
