Since no species besides humans performs the ceremony of marriage (and even then, many don't bother), yes, they do.
dinosaurs are birds they turned into birds, birds lay eggs and they get more birds
When it does not have any wings, a beak and has teeth.
no because the these all comes in animal category
It is a perching bird (passeriform), and is considered a songbird.
No. Scientifically, if a bird is not a bird, then it would be obviously considered as a female hippopotamus.