any idea what this is???

[glondor]

Found this on stumble upon. Hope the link works. If anyone knows what this is...

http://video.stumbleupon.com/#p=806lnnegr8

[Ivan Seeking]

It's a flock of birds.

[yenchin]

Flocking behavior is very interesting mathematically, see for example, this article (http://plus.maths.org/issue42/features/dartnell/index.html).

[hypatia]

It was very beautiful. I enjoyed that. I have seen several flocks this big, and bigger. It looks like they: A. found a food source or B. getting ready to roost for the night.

[glondor]

Amazing behavior, Thought it was birds. Was not sure tho.

[rocomath]

Wow that was definitely interesting. I have never seen birds flock like that before.

[matthyaouw]

Starlings, I'd guess
http://www.youtube.com/watch?v=MuY9hJ6gKeI

The blobby thing is something stuck on the windscreen of the car it was filmed from.

[russ_watters]

I've seen this too, but never such a huge flock and never just kinda randomly flying around. Amazing.

[DaveC426913]

We get hundreds of starlings at a time, but never anything like this!

My sister used to do fieldwork, estimating flock sizes like this. I'll ask her how many in that flock.

[Contrapositive]

Birds. You can clearly see bird **** land on the camera at 0:12.

[PlasmaSphere]

definately starlings, i used to see them all the time when i was driving to work. They flock together in a particular way, different to most other birds, and the shapes they make can be really beautiful. Almost hypnotising at times.