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Re: Altitude effects on hummingbird flight?
At 21:46 2006-12-21, Michael Habib wrote:
I've not checked to see which is the largest bird known to make use of
the technique, but they are quite big relative to hummingbirds and most bats.
I'm not sure either, but I suspect it is Buteo jamaicensis. The mass
records for B. jamaicensis specimens used in my bone strength dataset
range from 784 to 1460 grams. The 1,460 gram individual was a large
female, but probably not the maximum size. It gives a ballpark, at any rate.
Ospreys are inveterate hoverers and can do it for quite long periods. They
weigh up to about 2 kilos.