Possible scales, but I think there is some lack of consensus here.
Yes, as in the only living animals, they are. However, feathered dinosaurs, the ancestor of birds, also had feathers.
A evolutionary form of a bird. It had wings and feathers but still probably acted like a dinosaur but im not sure.
As with other birds, the wing of a blue jay is covered in feathers.
There are no animals that have feathers besides birds.
Yes. Kingfishers are birds, and all birds have feathers.
Pretty much all birds have feathers
No. Only birds have feathers. Kangaroos are mammals, not birds.
no they have feathers
Cassowaries are birds so, like all birds, they have feathers. Only mammals have fur.
The common ancestor of mammals and birds was a reptile.
Mammals are not covered with feathers. Mammals grow hair, but do not have to be covered with hair. Birds are covered with feathers.
NO!! because they have feathers