Which male bird produces milk for its young?

A1 - Pigeon
B2 - Eagle
C3 - Vulture
D4 - Ostrich


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Answer: Both female and male pigeons produce a nutrient-rich substance in their crop to feed their young (squabs). This substance has been likened to lactation in mammals and is known as pigeon "milk." During lactation, a curd-like substance is created from the cells that line the bird’s crop (a pouch found in the bird’s throat). At mealtime, one or both parents will regurgitate the substance into the eager mouths of the young squabs. Pigeons are one of only three bird species that produce milk — the other two are flamingos and male emperor penguins.