[metalman]

it's not just the feathers, it's the full systems integration that shows the genius of incrimental evolutionary design.the refinement is so equisite as to suggest an internal feedback mechanism that helps evolutionary processeses do there thing. as a person who designs and builds all sorts of things with integrated systems, all the time, and has a strong interest in aircraft design/engineering this example realy does show genius, and humans cant replicate it. also, crows HATE owls and I have seen them chase and mob owls, hundreds of crows after one owl, they aint called a murder of crows for nothing, have also seen mass airial battles with crows and seagulls, fighting on the wing while circling in a big thermal, again, hundreds of birds on both sides. love owls, and egulls, woodpeckers, most birds, but my strong favorite are chicadees