See, I have a pet project: a fantasy setting. It has bird-people. I decided I wanted to make them more than "humans with big fluffy wings", and being a biology nerd I've been trying to figure out how they would be made to fly. I'm aware magic would probably still have to be involved somewhere, but it's fun playing with ideas about what they would look like, how to conserve weight, etc. So I have two questions:
1. The center of lift can't be at the shoulders- as someone at the NaNoWriMo boards commented, "they'd fly like kittens you picked up by the ruff." So if the wings attatched lower down, mid-back maybe (although I did decide this species is proportionally smaller than humans), where would the bulky muscles to power them be? Would they still be in the chest with a keeled sternum etc. like in actual birds?
2. Hollow bones are important in real birds, but I'm not entirely sure they'd work for a bipedal creature- the legs have to take pretty much all the weight, and while hollow bones are built to be at least somewhat strong, I'm not sure they'd work here. Do they sound plausible?
I hope that made sense. I'm not especially coherent sometimes when I'm brainstorming.