Hairy-Legged Vampire Bats Were Caught Feeding on Human Blood for the First Time - Atlas Obscura
There are only three species of vampire bats. The White-winged Vampire Bat (Diaemus youngi) seems to prefer the blood of birds rather than mammals. The bats feed by hanging under perched birds
Amazing Facts about Common Vampire Bats | OneKindPlanet Education
Scientists figure out how vampire bats got a taste for blood – KTSM 9 News