Can someone explain these birds?

[Flybye]

LOL Wow
http://video.yahoo.com/video/play?vid=efd6e4b1b519baebab4f1514f8652f60.632761

[electronman32k]

man those birds are crazy WTF!! is up with that tree????

[Synthohol]

most likely bugs would be my guess.
only tree left with leaves so all the herbavore insects would still be there.

[WackyComputer]

It's late in the evening and they are trying to roost in a tree that can't support them. I've seen it hundreds of times, the Hagerstown area is covered with them.

[Kill-Switch]

That looks crazy

[unacceptable_risk]

Hey cool. My last house had something quite similar occur next door on a regular basis.

Rather small green parrots with pink faces would gather at an 80 year old pine tree that grows atop a ridgeline, It would by virtue of its hight and position the tallest tree in the area.

The birds would come from miles around, all afternoon you would see them approaching in pairs and small groups from every direction. Its not hard to believe that every green parrot in the city would show up. All working to some calender unknown to us bald monkeys.

Eventually by the time the sun had started to head for the horizon there would be thousands of them, they would break from the tree in groups of a thousand or more and race around and around the tree. Then other groups until there was 2 or 3 such groups cutting laps. Occasionally some would return to the tree while others went for some laps, then as the sun would go home they would all fly off in every direction again.

This would happen about once a month. We called it the bird races.

We always found it fascinating that the birds would know when the races were on etc.. cool thing to watch.

[WackyComputer]

Birds are funny, and monkeys are really funny and a little scary. Could you imagine what it would be like if monkeys could fly and flew around in flock/troop?