No. They have always lived in North America and South America.
No..They are sometimes killed by hawks, like redtailed hawks.
Eagles, hawks, falcons, and owls are all raptors. Eagles are most closely related to the Buteo hawks, which include the redtailed, red shouldered, Swainson's, and rough legged hawks.
Many hawks are called chicken hawks in the United States. They include, Cooper's hawk, goshawk, redtailed hawk and red shouldered hawk. The name really shouldn't apply, as these hawks rarely molest poultry.
The proper name for a group of hawks is not a flock,however it is referred to a kettle of hawks.
It is normal for Red Tail Hawks to flock during migration.
Red tails are very common, and can be seen in any wooded area or pastureland, even sitting on poles next to highways, scanning the ground for rodents.
A group of ostriches is called a flock. Or rather a "herd of ostriches" and a "flock of birds".
Red-tailed hawks often roost in trees or on high perches, such as utility poles or cliffs. They prefer tall structures that provide a good vantage point for hunting and keeping an eye on their surroundings.
it come from the redtailed thing, tom Powell
If the pigeons are flying, the imminent predator are the hawks. They make a roll to avoid a hawk attack. The whole flock does the maneuver at once.
Just yesterday, 10-21-2012, I saw a group of approximately 30 redtailed hawks rising together in one group. One landed in the backyard and stared my german shepherd down then flew off. I have never seen them in a group before like this before.
it come from the redtailed thing, tom Powell