birds aren’t the only animals to feed their babies barf. wolves are one too!
these wild canines travel miles to find preys, often too big to haul back to the pups in the den. thus the only way to get the meat back to the pups is for the adults to eat n carry it back with their stomachs. arriving back at the den, the pups go crazy licking the adults’ mouths, which stimulates the adults to barf up the partially digested meat, n viola! dinner is served.
so did you ever wonder why your pet dog tries to lick your face? it is not trying to give you a kiss, it is trying to make you throw up your lunch just so it can get a snack.