But birds didn't come from lizards, they came from therapod dinosaurs, a completely different critter altogether. Microscopic bone analysis of therapods indicate they were warm blooded and had feathers. As for their internal plumbing, we don't know and never will unless we figure a way to clone them as in Jurrasic Park.
If you are going to make a statement, at least try to get some of it right. I've been going over your "God hates idiots too" post and find this sort of sloppy thinking and wording throughout. BTW, I'm putting together a rather lengthy refutation of that particular piece.
This I have to hear! Please tell us how they found out from bones that dinosaurs were warm blooded!