Evolutionary subtleties

bird – Definitions from Dictionary.com

Their definition of bird: “any warm-blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard-shelled egg.”

Forelimbs modified into wings? Oh, right, evolution is a provable fact, and all the dots have been connected between forelimbs and wings.

What do you think?