Boil
Yesterday there were probably at least a hundred birds — some kind of hawk or buzzard — in the trees near and around our house. They spent most of the day here, but are gone today. I always thought of hawks as solitary birds and never expected to see them gathering in such numbers.
Boil is the collective noun for hawks.
I gotta have my orange juice. 
Hey Scott,
While it’s kind of hard to tell from your video, I do believe they are some kind of vulture (Turkey or Black). They can be easily identified by having a visible “bend” in the leading edge of their wing, king of like a shoulder, only further out from their body. Hawks don’t have these. They also have more of “V” shape looking at them head-on, such that the tips of their wings will be higher than their heads. Hawks wings will project straight out. When the fly around too, you can notice little wobbles in thier “soaring”, whereas Hawks will appear more steady.
Other than the above, Turkey Vultures can be distinguished from Black Vultures by the color of their wings. The underside of a Turkey Vulture’s wings will have lighter colored flight feathers as compared to the leading edge of the wing, Black’s will not. Turkey Vultures are also bald, but that’s hard to tell from a distance.
Gerrit
November 20, 2012 at 3:56 pm
Thanks, Gerrit! Guess I used the wrong compound noun. 🙂
Scott Moonen
November 20, 2012 at 4:32 pm