Mar 19 2009

Question: Time Between Eggs

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Peregrine falcon with one egg (photo from Univ of Pittsburgh nest site)Question:  After one egg is laid, how soon will she lay the next one?

Answer:  In peregrines the physical process that produces an egg takes about 48 hours, though it can take more than 72 hours.  Basically, a new egg every other day until the clutch is complete.  The female peregrine won’t start incubating until she lays her next-to-last egg.  Only she knows which egg is her next-to-last.

(photo from National Aviary falconcam at University of Pittsburgh)

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