Production of crop milk, a secretion from the crops of parent birds, is rare among birds and, apart from pigeons, is only found in flamingos and male emperor penguins. Essential for the growth and ...

Bird milk, the fluid that’s produced in the crop of pigeons and a few other species of birds, nourishes their chicks. And now, scientists have found the gene expression involved, and may be able to ...

Production of crop milk, a secretion from the crops of parent birds, is rare among birds and, apart from pigeons, is only found in flamingos and male emperor penguins. Essential for the growth and ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Milk is produced by mammals in order to ...

Producing milk to feed babies is normally the domain of mammals, including humans. But it has been discovered that the pigeon is one of only three bird species that produce a milk-like substance to ...