they both fly
Both bats and birds are warm-blooded vertebrates.
They both have wings.umm what about the fact that there a black birds and bats are blackthere are many types of species of birds and batsthey both eat bugs except for birds of prey and blood bats
Some but not all. Some bats and birds both eat bugs.
They are not THAT closely related; bats are mammals, not birds. Both mammals and birds are vertebrate animals.
Bats are mammals. Owls are birds.
Both bats and birds are warm-blooded vertebrates that use their forelimbs as wings.
Birds and Bats both have spinal chords, the primary characteristic of the phylum Chordata.
There is none beyond that all animals are related and that bats and birds are both land-dwelling vertebrates. Birds, bats, and insects developed flight independently of one another.
Bats and birds fly. They both have vertibre. They bath flap their wings to fly. THey do a lot of stuff that's the same like stuff.
Bats and bears . . . they're both mammals. A bird isn't.
Bats and birds are both flying animals.
only bats are mammals. a bird is a bird which is a whole other animal group.