Over all this a good race(s) homebrew. I plan on allowing it my own adventures because it really gives people the option to play something they want. I particularly love how you did Flight option for those that want to do it. It's completely fair and it makes flying seem just as hard as it should be and doesn't make the Spell, Fly, useless.
My only compliant is there is no Printer Friendly version.
[5 of 5 Stars!]