Crop milk is a secretion from the lining of the crop of parent birds that is regurgitated to young birds. They are found among all pigeons and doves where they are referred to as pigeon milk. Crop milk is also produced by flamingos and some penguins.
Read more about Crop Milk: Comparison To Mammalian Milk, Feeding Nestlings, Hand-rearing Pigeon Squabs, Cultural References
Famous quotes containing the words crop and/or milk:
“And, by the way, who estimates the value of the crop which nature yields in the still wilder fields unimproved by man? The crop of English hay is carefully weighed, the moisture calculated, the silicates and the potash; but in all dells and pond-holes in the woods and pastures and swamps grows a rich and various crop only unreaped by man.”
—Henry David Thoreau (1817–1862)
“Gup, Christian Clout, gup, Jack of the Vale!
With Mannerly Margery Milk and Ale.”
—John Skelton (1460?–1529)