Question: Sometimes when I look at the webcam there are no adult birds in view. Aren’t they afraid their eggs or chicks will be attacked? Where are they?
Answer: They’re there. You just can’t see them from the camera’s narrow view. At times when “no parents are there” on camera, I have been at Schenley Plaza across from the Cathedral of Learning and seen a parent bird perched just two feet above the nest, watching the babies.
In this photo the weather is warm and the chicks are sleeping. Don't worry, the parents are guarding them.
(photo from National Aviary falconcam at University of Pittsburgh in 2012)