Other Peregrine Projects > USA Peregrines

OH / Columbus - Rhodes Tower - 2008-16

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carly:
Girls do tend to go later but it depends on the bird - weight and size, health, presence of siblings, experience of parents, etc...  Two years ago, the female at my site fledged on Day 38 with her brothers, last year they all (2 males and 1 female) were still on the ledge being beak fed at Day 42.  In Edmonton, Cassie I think didn't go until almost/or on Day 50 - she was a lone chick.  Last year the Hamilton females were all over 1000 g's and we thought for sure they'd take forever to fledge and probably come down - well they showed us!  They flew like champs!  

I can't speak for all falcons - nor would I attempt too but in my personal observations at my site I've noticed that now that we have the same adult pair for a few years - the fledge periods are taking longer as they've gained experience.  I'm guessing the parents adjust their strategy based on past years - for example we have glass buildings so the kids would typically hit the glass on fledging and get hurt and in some cases die but now that they don't push the young as hard to go early and let them stay longer, we have had no fatalities for three years now during fledge and this year none of the kids have hit the glass on their first flights.  The first year I watched my pair - the female was very aggressive in trying to get the young to fly early, she still tries but doesn't push them as hard as previous years and seems to be willing to wait until they are ready to go.

The longer they stay, for sure the better to get stronger.  

jadoo:
...Spirit's been wingercizing in camera view - proud mom Scout was hanging around for a bit (very lovely looking), then Spirit charged her (hoping to be fed?) and Scout took off...I've seen glimpses of Swoop wingercizing on the ledge; the latest blog says they're at 5 weeks, and could be fledging soon, though probably not before this weekend. I know it could happen around 40 days, but these are both females, and I thought that, since they are bigger & heavier, they may need a few more days to get their wing strength - any thoughts/info on that?

jadoo:
...plenty of wingersizing today, it's currently 28C & partly sunny in Columbus;  when they do their run, hop, skip, beat wings, you can practically read their minds - "Look, I'm flying, I'm flying!!"  Reminds me of nothing so much as kids playing airplane on a nice summer day...

RCF:

--- Quote from: jadoo on June 21, 2010, 14:18 ---...ewwww, and now Spirit checking to see if it was edible... :-X :-X

--- End quote ---

YUM YUM  :-X ;D

jadoo:
...sisters are now sitting on opposite ends of the ledge - obviously not speaking to each other right now...no sign of the remains of the food package anywhere...ain't families wonderful?  ;D

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