Surprise! There are five eggs at the Gulf Tower peregrine nest... and they've been there for two and a half days.
This evening Catherine posted a comment (here) that she thought she saw 5 eggs at the Gulf Tower nest on Saturday but was unable to capture a photo until tonight. She included a photo link with her comment. Aha! Proof!
Spurred on by Catherine's discovery I went through the motion detection snapshot archives to find the first evidence of five eggs. Here they are on Saturday, March 26 at 12:32pm. Dori and Louie have been so good about covering them that it took Catherine's sharp eyes to point them out.
This really is March Madness.
Pitt: 5, Gulf: 5.
(photo from the National Aviary webcam at the Gulf Tower)