Definition
A hippoboscid is any fly belonging to the family Hippoboscidae, known for being external parasites of birds and mammals 🐦. These flies are flattened and leathery, and either winged or wingless. They feed on the blood of their hosts, often clinging tightly to their fur or feathers. They're like the ultimate hitchhikers of the animal world, always looking for a free ride. Think of them as tiny, flying (or not) vampires, but specifically targeting birds and mammals. Some species are quite picky, preferring only certain types of hosts.