1.7K views · 122 reactions | Flamingo parents feed their chicks a liquid they secrete in their throats, called crop milk. Young flamingos are born gray and white and do not turn pink for about two years, when they are old enough to eat on their own.  by Liza Diaz & Ivan Vasquez aboard #NatGeoEndeavourII in Galápagos | Lindblad Expeditions | Facebook

Pigeons, doves, flamingos, and even male emperor penguins produce a special nutrient-rich substance called crop milk to feed their chicks. Most bird parents feed their babies by partially digesting food and regurgitating it into the chick’s mouth. This makes the food soft and easy to swallo Songbird parents may visit the nest hundreds of times a day. Some species feed chicks every 10–15 minutes from sunrise to sunset. Even birds that eat seeds as adults often feed their chicks protein-rich insec