Birds are not descended from dinosaurs — they are dinosaurs, a living branch of the theropod family that survived the asteroid and now fills the world with more than 10,000 species - Space Daily

The pigeon on the windowsill is a dinosaur. Not the descendant of one. One. 
This is not a rhetorical flourish. It is the plain consequence of how biologists now classify living things. Birds sit in… [+6083 chars]