At last we have a post that is almost back on topic! As nice as hypothesising about a way to increase the gravitational field strength on the surface of the earth without killing pretty much all life is, the topic of this thread is meant to be bird evolution!
Anyway interrobanging, I think that post that you refer to has already been discussed by the OP and the poster, so hopefully any differences they had have been ironed out.
I'll try and very briefly summarise the positions so far in the thread.
Creationists: Bird morphology is irreducibly complex. If any of a number of features weren't there then it would be impossible for a modern bird to fly.
Evolutionists: Modern birds didn't arrive overnight. Primitive birds could NOT fly as well as modern birds, and all of the features in a bird can concievably be reached by modifying pre-existing structures that aren't used for flying. Intermediate forms exist in the fossil recod.
Sorry if i've oversimplified too much, but it's just meant as a brief summary to get back on track. Anyone care to dispute the Evo position?
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