Why did President Truman ask Congress to give financial aid to Greece and Turkey?
Actually checking the nest for the number of eggs while a finch is sitting on them can cause nest abandonment. After mating, a female finch can store sperm in her reproductive tract for up to 16 days. Female finches generally lay an egg every day, commencing between five and seven days after breeding. The average clutch consists of four to six eggs, although the overall number varies from three to eight.
How many eggs does a bluebird lay each year? On the surface, this might seem like an easy question. After all, participants in The Birdhouse Network send data to the Cornell Lab of Ornithology each year on the number of bluebird eggs that they count in their nest boxes. These data show that the answer depends on locationâEastern Bluebirds at northerly latitudes lay larger clutches than do bluebirds farther south.