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
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
Both bats and birds are warm-blooded vertebrates.
Bats are mammals, birds are not. Birds lay eggs, bats do not.
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.
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.
Birds and bats are homoplasious because they are similar, but not derived from a common ancestor. An example of homologous structures is a man's arm and a cow's foreleg. They are anatomically similar but have different functions.
Vampires and Vampire bats both drink blood. The only difference is that vampire bats drink animal blood. Plus vampire bats are real. The other type are fictional.