Bird causes plane to crash - 36 species of birds (including starlings) to be declared terrorists?

Quite amazing that a bird - a bunch of feathers and hollow bones - can bring down a huge chunk of flying metal.

clipped from news.yahoo.com Early reports suggest that a bird strike caused a jet plane to crash in the Hudson River near Manhattan today, leaving questions about how a little flying animal could down a big airliner. The incidents are serious particularly when the birds, usually gulls, raptors and geese, are sucked into a jet engine and strike an engine fan blade. That impact displaces the blade such that it strikes another blade and a cascade can occur, resulting in engine failure. Large aircraft are certified to be able to keep flying after impacting a 4-pound bird, however 36 species of birds in North America weigh more than this, according to the committee. Even smaller birds, such as starlings, can cause engine failure. Flocks of birds are even more dangerous as they can result in multiple strikes. Delicate birds, delicate aircraft