Nesting: When Will The Eggs Hatch?

Peregrine eggs just hatched, 27 Apr 2013 (photo from the National Aviary snapshot camera at Univ of Pittsburgh) Question: How soon will the eggs hatch? Answer:  Peregrine eggs hatch about 32 days after incubation begins(*), but it is hard for most people to tell when incubation begins in earnest. I have tracked the “first egg” and ”first hatch” dates … Continue reading Nesting: When Will The Eggs Hatch?