Thanks to @PittPeregines we have video of the first peregrine hatchling at the Cathedral of Learning
The video above shows the time from first pip (hole) in the shell until the chick hatches and dries out, white and fluffy beneath Dorothy's breast.
The video below shows the first feeding and E2 arriving to meet the chick and spend some time with it.
Follow @KStJBirdblog (me) and @PittPeregrines (Dorothy & E2) on Twitter for updates.
(videos by @PittPeregrines constructed from National Aviary falconcam snapshots)