This morning at the Cathedral of Learning three hungry peregrine chicks begged Dorothy for breakfast. At least one was so hungry that he started begging while she was still brooding them.
At dawn E2 announced breakfast off camera. When Dorothy got up to receive it, I could see the fourth egg still unhatched.
Hatching can take 72 hours from first pip, which was visible yesterday morning. So we wait.
Meanwhile the new chicks are perfecting their begging skills. When they slow down Dorothy encourages them by "chupping."
"Eat!" she says, and they raise their heads again and open their beaks.
Watch them on live streaming video here.
(photo from the National Aviary falconcam at Univ of Pittsburgh)