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Well, yes. We know they had big hooters (That's noses!! For goodness sake try to control yourself) but were they warm or cold-blooded?
There are no cold blooded animals with fur or feathers.
... Feathers are a hindrance for a cold blooded animal. They insulate the animal and prevent heat from entering the body. There are no cold blooded animals with fur or feathers. Dinosaurs had feathers. Not all of them, but enough to get the picture that these creatures needed to conserve heat not collect it from outside.