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1 April 2024
Carla and Ecco have accomplished practically two weeks of incubation on the Pitt peregrine nest and have three extra to go. As we watch them on the Nationwide Aviary falconcam it may be tough to inform who’s on digicam as a result of their look is comparable. Listed here are some ideas for determining which hen is on the nest proper now.
Nighttime incubation? It’s Carla besides …
Ecco generally brings meals earlier than daybreak so you may even see him on the nest within the early morning whereas Carla eats.
Everytime you’re doubtful, use the following pointers.
Measurement: Carla is bigger
Male peregrines are one-third smaller than females so measurement is the plain method to inform the distinction between the Pitt peregrines (see slideshow at prime). Nonetheless, Carla will not be an infinite feminine and at shut quarters on the falconcam together with her again turned I’ve a tough time figuring out her by measurement. The distinction is clear on this slideshow however not when Carla is alone on digicam.
Plumage: Carla is Scalloped, Ecco is Striped
This spring in contemporary breeding plumage Carla’s feathers have white ideas that make her look look scalloped. Ecco’s feathers don’t have lengthy white ideas so he seems to be vertically striped with high quality black traces. Observe that this distinction works proper now however feathers are dynamic and won’t look the identical in just a few months.
Quiz! Take a look at your expertise
Apply recognizing measurement and plumage variations on this brief video that compresses 60 hours into 1:41 minutes. At this velocity the dimensions variations between Carla and Ecco are apparent however you’ll have to take a look at one spot on the display screen to note plumage. Stare at one place and suppose “Scalloped or Striped?”
Do you may have a favourite methodology for telling Carla and Ecco aside? Publish your tip within the feedback.
In the meantime get extra follow on the Nationwide Aviary Falconcam at Univ of Pittsburgh.
(pictures and video from the Nationwide Aviary Falconcam at Univ of Pittsburgh)
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