Other Peregrine Projects > USA Peregrines
PA / Harrisburg - Rachel Carson Building - 2008-21
The Peregrine Chick:
--- Quote from: Kinderchick on October 04, 2010, 20:59 ---Hmmm... I was wondering what exactly you mean by "a mix of subspecies", TPC? :-\
--- End quote ---
--- Quote from: carly on October 05, 2010, 05:02 ---In the US, they used several different sub-species of the peregrine to breed for the recovery project - in otherwords they cross bred them.
--- End quote ---
Thanks Carly - exactly what I meant! :-*
The US program drafted all the peregrines they had available to them, a number of which were subspecies that don't migrate. We know for sure that Madame (Radisson female #2 / before Princess) had Spanish and/or Scottish peregrine subspecies genetics and since she didn't "stay" with her mate as has happened in some eastern US cities, rather she had no intention of leaving, it is generally believed it was because of her genetics.
carly:
--- Quote from: Kinderchick on October 04, 2010, 20:59 ---Hmmm... I was wondering what exactly you mean by "a mix of subspecies", TPC? :-\
--- End quote ---
In the US, they used several different sub-species of the peregrine to breed for the recovery project - in otherwords they cross bred them.
Kinderchick:
Hmmm... I was wondering what exactly you mean by "a mix of subspecies", TPC? :-\
The Peregrine Chick:
Staying or going might have less to do with the site and more to do with the birds' genetics. Our birds all leave but we did have a female, from the US, who overwintered in Winnipeg from 1990 to at least 2005. She was a mix of subspecies which is more common in the US than it is here in Canada where there was a concerted effort in the beginning to breed true to the subspecies in our captive-breeding program. In the US, their breeding programs were more flexible. Is this the reason that all peregrines stay at sites like this, no way to really say unless one did a genetic breakdown and comparision of all the birds that stay and all those that leave. I could be one explanation or part of an explanation, say in combination with warmer winters and urban nest sites and perhaps even more pressure to maintain control of nestsites. No one has any real answers, but its always interesting to watch, wait and see.
Linder:
Have been checking out this site the last couple of weeks and apparently Mom has not been seen since the beginning of September. There is a new unbanded female at the site. There appears to be some doubt as to her age, maybe two? Lil Dad has accepted her at the site and they seem to be getting along. They don't usually migrate from this nest box but it is not sure if the new female, commonly referred to as NG "new girl" will stay.
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