Thanks to sharp observers Donna Memon and @PittPeregrines here’s a photo of Dorothy’s third egg, laid today at 5:35pm.

I’m glad the heat wave is over!  Dorothy is too, I’m sure.

Just over an hour later:  A photo of the three eggs as E2 leaves the nest to switch egg-duty with Dorothy:

(photo from the National Aviary falconcam at the Cathedral of Learning)