They both have wings.
umm what about the fact that there a black birds and bats are black
there are many types of species of birds and bats
they both eat bugs except for birds of prey and blood bats
They fly, eat fruit, and both have a pair of wings.
Birds of Prey
No mammals didn't decend from the dinosaurs, birds did. Bats came from common rodent ancestors.
Bats do, birds do not
Birds and bats
Wings in both birds and bats are considered homologous structures. They have a similar function (flight) but different evolutionary origins – birds have wings made of feathers while bats have wings made of skin stretched between elongated finger bones.
Both bats and birds are warm-blooded vertebrates.
No. Bats are mammals while birds are descended from dinosaurs.
Bats have fur but birds do not. Bats are mammals that give birth to live young, whereas birds give birth by way of the laying of eggs.
Bats are not birds. Bats are flying mammals. Some birds have a rudimentary echolocation capacity. These birds are the oilbirds of South America, and the cave swiftlets of Asia.
Bats are mammals, birds are not. Birds lay eggs, bats do not.
A bat bears it's young alive, does not have feathers and does not have the high metabolic rate of a bird.
No. Both are birds and their wings are a derived trait common to all birds. The wings of penguins and bats display convergent evolution.