This afternoon webcam viewers were surprised to see a brown-colored falcon arrive at the Pitt peregrine nest and then bow and e-chup at Terzo as he was incubating.
Terzo was surprised, too. He got up off the eggs and flew away leaving this juvenile, unbanded female to pause for a heartbeat ... and then fly away as well.
Click here for the archived footage: Juvenile female visits the nest.
4 minutes later Terzo returned to the eggs.
40 minutes later Hope returned to incubate.
I've not had time to review all the footage but so far the archives show no sights or sounds of a fight with Hope. Apparently Hope chased off this juvenile intruder.
For now, all is calm.
p.s. Thanks to Zack and sheba50 for pointing out this brief intrusion. It was so brief that at first I couldn't find any evidence of it. I had to review a lot of footage to find it!
(photos from the National Aviary falconcam at Univ of Pittsburgh)