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.
Back to the Questions. How many eggs do wrens & bluebirds lay at a time/in a year? House Wrens typically lay six to eight eggs (but have been known to lay as many as 12!) in one clutch, but they nest only once per year. Bluebirds typically lay six eggs in their first clutch, and four or five in their second.