May 09 2013

How Many Nestlings?

Published by at 6:20 am under Nesting & Courtship,Peregrines

 

Downtown Pittsburgh peregrine nest (photo by Christopher Rolinson)

Now that the falconcam is running and the peregrine chicks are mobile we’ve been trying to count white, fluffy heads.  How many chicks are at the Downtown Pittsburgh peregrine nest?

A week ago Chris Rolinson, associate professor of photography and photojournalism at Point Park University, set up a time-lapse camera to take snapshots of the nest.  Many hours later he retrieved the camera hoping for lots of peregrine activity, but they did not oblige.  On the other hand, he captured a really clear shot of one of the parents, a chick, and a prey item at the ledge edge.  Click on the image above for a larger view.

The falconcam also takes snapshots but it sways in the wind so most of its images are blurs of the facade.  Yesterday there were three tantalizing photos.

Here a chick traveled closer to the nest opening.  He looks pretty big.

Peregrine chick walks to the front (photo from the National Aviary falconcam at Point Park University)

 

And around one o’clock they lined up so we could count heads.  In the marked up snapshot below there are three peregrine chicks facing us.

Three chicks visible, Downtown nest (photo from the National Aviary falconcam at Point Park University)

 

A few minutes earlier there may have been a fourth with his side to the camera and his face hidden by the wall.  His nearest sibling appears to be looking at him.  (Notice that his location is dark-colored in the image above.)

Possibly four chicks visible, Downtown nest (photo from the National Aviary falconcam at Point Park University)

 

So how many chicks do Dori and Louie have?  Certainly three, perhaps four.

Watch the Downtown Pittsburgh falconcam and tell me what you think.

 

p.s. We’re looking forward to more from Chris Rolinson when the chicks are more active.

 

(photo at top by Christopher Rolinson.  Time-stamped photos are from the National Aviary falconcam at Point Park University)

8 responses so far

8 Responses to “How Many Nestlings?”

  1. Steve-oon 09 May 2013 at 8:56 am

    I’m not one for naming the birds. But if these chicks were going to be named, names from King Arthur’s Court would be very appropriate with that round table there.

  2. Kate St. Johnon 09 May 2013 at 8:59 am

    LOL, Steve-o

  3. Allyon 09 May 2013 at 9:33 am

    Will these babies be banded?

  4. Kate St. Johnon 09 May 2013 at 9:37 am

    Probably not, Ally. The opening is narrow and high. It would require a special lift truck.

  5. Kathyon 09 May 2013 at 10:51 am

    I love the Knights of the Round Table idea!!

  6. Allyon 09 May 2013 at 11:21 am

    When will Dorothy & E2’s baby get banded?

  7. Kate St. Johnon 09 May 2013 at 11:25 am

    Ally, we don’t tell people in advance because the room is too small to accommodate “gate crashers.”

  8. Michelle, Colorado Springs, COon 10 May 2013 at 11:35 am

    It’s so nice to see Dori and Louie and their chicks again. Thanks for sharing. :)

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