Five Weeks of Peregrine Activity

  • Terzo, 20 Oct 2020 (snapshot from the National Aviary falconcam at Univ of Pittsburgh)

21 November 2020

Now that I live in Oakland I see the Pitt peregrines when I walk around the neighborhood. Morela is a regular, of course. Last week Terzo appeared almost every evening at 4:30pm, circling the Cathedral of Learning and zooming up to a high perch. It’s a joy to see him.

I began to wonder if he was the only male peregrine at Pitt but a look at five weeks of snapshots indicates Ecco has been present, too. I’ve put their appearances in the slideshow above.

The calendar shows that Terzo is more frequent: Terzo = blue, Ecco = green. Amazingly, both of them were present on 22 October 2020.

Visits to the Pitt peregrine nest by Terzo (blue) and Ecco (green), Oct & Nov 2020 (calendar layout from

We still have two male peregrines at Pitt. It’s still not a normal year.

(snapshots from the National Aviary falconcam at Univ of Pittsburgh. Blank calendar from

4 thoughts on “Five Weeks of Peregrine Activity

  1. This will be an interesting situation if both tiercels hang around til late winter. Hope that it settles out without a bird on the ground.

  2. Do you ever feel like a voyeur? (New word – volière)
    Who is in control of a “nest”? Does size matter?
    In a natural setting, do peregrine nest under an overhang? Does a leaky roof matter?

    1. All good questions, Nan.
      I usually don’t feel like I’m snooping. It’s a chance to learn about another species.

      Does size matter in ownership of the nest? I think attitude / aggressiveness is the biggest factor. Ecco is probably a little sneaky, but Terzo hasn’t convinced him not to return. Aggression would be very convincing.

      Nest roof needed?
      Peregrines like a sheltered spot but it’s not a requirement. The Terminal Tower nest tray in Cleveland doesn’t have a roof. When it snows mama peregrine (on eggs) is nearly buried.

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