April 25, 2009

Gracie and George

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Gracie and George have raised several broods,
eyas, in the last few years.
A San Francisco webcam from the PG&E building keeps me up to date on the city falcons. For a live viewing of this year's bunch, click on Gracie, below.
(photo by Glenn Nevill)

George and Gracie nested at the San Francisco PG&E for the first time in 2003 and successfully fledged two eyas in June 2004. In 2005 Gracie laid four eggs in early spring, and all four hatched. The young nestlings were watched by thousands as they grew up on camera, center stage, for the world to see. Three of these four successfully fledged in the 2005 season, and were seen almost daily for several weeks flying high above San Francisco's financial district before they dispersed.
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In 2006 George and Gracie moved across the street from the PG&E building and nested in a 30th floor planter at 201 Mission St. Together they raised a single eyas in 2006, and he fledged successfully, on camera, the last week of May. When George and Gracie started off on the Oakland Bridge one year, they had to be moved, a huge production, including cranes and climbing harnesses. Hard-hatted workers were beaned by swooping parents.
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Who are George and Gracie? About George: George's identity was revealed in 2005 by the VID (visual identification) band worn on his left leg fitted in 1999. SCPBRG will often remove peregrine chicks from Bay Area bridges and release them at safer locations, because they have a very difficult time fledging successfully at bridge sites.

George was removed as a downy chick from a nest on the west span of the Oakland Bay Bridge in 1999, and released at a hack site in San Gregorio later that season.
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About Gracie: The adult female, Gracie, was not definitively identified until 2006. Gracie does not sport a VID band, but she is wearing a silver colored Fish and Wildlife Service band on her right leg revealing that she was banded by the Golden Gate Raptor Observatory in November 2001. . Her origin is still unknown however, as she had already dispersed from her nest region.
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The San Jose Falcon, Clara, stays closer to her brood than Gracie, if my visits to her nest cam are indicative. This is her third nesting at City Hall. I don't know if this is usual, but for today, each female left and returned to feed the young at 12:00 p.m. sharp.
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Clara was done feeding a few minutes early, and she fluffed, shuffled and cuddled, settling slowly around her eyas. It's easy to anthropormorphize falcons.

(much of this information comes from the Santa Cruz Predatory Bird Research Group)

1 comment:

baffle said...

fascinating! Keep us posted from time to time - and I will be sure to check the links myself.
Thanks!