They are warmblooded animals.
Both are vertebrates and so the bone structures are broadly similar.
Birds are more closely related to Reptiles than to mammals.
Both are warm-blooded. Both are covered in some kind of keratin substance. Both are amniotic. Both are vertebrates. Both have four-chambered hearts. Both are advanced groups of animals.
Yes, in some ways birds are very similar to mammals. In others, they differ completely.
While at first glance birds seem similar to mammals, they are more closely related to reptiles.
Birds and mammals both have internal skeletons, closed circulatory systems, similar digestive systems, and are warm blooded.
All are living creatures.
Of course not ...no birds are mammals !!!!!!!!!!!No, they are birds.
Birds have a thin kind of skin underneath their feathers. Their skin is similar to mammals but much more delicate.
Birds do not fart at all, because their digestion system isn't similar to mammals.
No, they are birds.
No. Birds are not mammals.
No. They are birds. Birds and mammals are separate classes of animal.
No. They are birds. Birds and mammals are separate classes of animal.
Raccoons are not birds. Raccoons are mammals.