Why is it necessary to confuse the question by saying they're dinosaurs. A bird's a bird. And it came from a dinosaur-type ancestor. John Ostrom, from Hunting Dinosaurs by Psihoyos and Knoebber, 1994. Obviously there have been a lot of incredibly exciting discoveries since he said that which buttress the evolutionary linkage, but I still think his point is valid.
Crusades are for curmudgeons and jihads are for jerks.
Finally, I am grateful for the time you spent answering my questions regarding the cladistic levels at which bird characteristics appeared. Modern birds did not appear in one evolutionary leap. I have spent plenty of time debating with Creationists over that subject. Any attempt to distinguish unequivocally between avian and non-avian dinosaurs becomes really fuzzy when looking at the creatures we have recently been discussing. I apologize if this has been dealt with extensively in the past and I know how tiresome it can be to go over the same ground repeatedly.