They fly in a circular pattern swirling around to confuse the predator bird much the way small fish school to evade predatory fish and whales. This power in numbers rule is also seen in terrestrial animals such as zebra, wildebeest and buffalo. read more
While driving to the bust stop this morning, my mother and I saw an interesting phenomenon – birds, which appeared to be grackles, were circling around i read more
I was watching a flock of pelicans fly this morning and they were doing that. They are riding thermals to gain altitude. I've seen flocks and individual birds do this too. read more
By flying a spiraling circular path within these columns of rising air, birds are able to "ride" the air currents and climb to higher altitudes while expending very little energy in the process. Solitary birds like eagles and hawks often take advantage of thermals to extend their flight time as they search for food. read more
Birds fly in circles for various reasons. The birds are simply gliding on thermals, which move in circles.The birds are searching for preyThe birds are performing a mating ritual by flying with each other. read more