Mar 23 2011
The Big Sit has begun.
Both of Pittsburgh’s peregrine families are now incubating their eggs full time. For the next month the most interesting thing we’ll see on the falconcams will be the changing of the guard.
Pictured above is Dorothy at the University of Pittsburgh’s Cathedral of Learning. When she laid her third egg on March 18, I thought she would start incubation right away but she didn’t begin in earnest until March 20.
Meanwhile at the Gulf Tower, pictured below, Dori and Louie started incubation after Dori laid her third egg on March 21.
We’re in for some boring video on the falconcams for about a month.
Peregrine eggs don’t hatch until they’ve been incubated 33-35 days.
(photos from the National Aviary falconcams)