The idea is not bad, but:

Geektimes /
Free your imagination: what if the pigeons lived in roys, and in each roy there would be a pigeon’s womb that would live in the stratosphere in constant flight, dropping one egg per second, so that the egg would be heated by air friction and the new pigeon would peel out without touching the ground?

only if they will peel out already operated, otherwise the earth will be filled with broken naked chickens.