Manitoba Peregrines > Radisson Peregrines
Radisson - 2010 / Ivy & Princess
The Peregrine Chick:
1720 hrs - no sign of anyone on the east side of the building, not even in the sun on the JR sign. Hopefully she is perched on/in the nestbox thinking this is where she wants her kids this year.
Just as an update - tomorrow's forecast has changed from 40% risk of rain to sunny and some cloud in the evening but no rain. Oh, and +7C!!! that's 12 degrees warmer than today!!!
Alison:
--- Quote from: The Peregrine Chick on March 25, 2010, 15:26 ---Maximum longevity records for banded birds range from 16 to 20 years.
Average lifespan a bit harder but here's a bit of biologist speak ... of all the birds hatched the year Trey was hatched and assuming 80% of all adult birds survive each year, only 11% of the birds hatched in 1996 are still alive at 11 years of age and 1% at 20 years. So assuming that Trey is average (and we know he's NOT ;)) out of say 1,000 chicks hatched in 1996 including Trey, he is one of between 10 and 110 birds still alive today.
--- End quote ---
Very interesting information, TPC. Trey is anything but average -- he is an exceptional peregrine, and extremely handsome. I think about tiercels such as Sir James (20 years old), Kinney (17 years old), Zeus (16 years old), and Bandit (15 years old), who are still successfully raising chicks. And Mercury, who at 17 years old raised three chicks successfully on his own after the loss of Snowball.
Trey is one of a kind. Talons crossed for him to return very, very soon.
bcbird:
Nah, our Trey is one in a million! He's a rock star!!
The Peregrine Chick:
--- Quote from: Saoirse on March 25, 2010, 14:17 ---Given the context, I hate to ask this, TPC -- but what would be a "normal" life expectancy for a peregrine falcon? And I know that "normal" is one of those relative words . . .
--- End quote ---
Maximum longevity records for banded birds range from 16 to 20 years.
Average lifespan a bit harder but here's a bit of biologist speak ... of all the birds hatched the year Trey was hatched and assuming 80% of all adult birds survive each year, only 11% of the birds hatched in 1996 are still alive at 11 years of age and 1% at 20 years. So assuming that Trey is average (and we know he's NOT ;)) out of say 1,000 chicks hatched in 1996 including Trey, he is one of between 10 and 110 birds still alive today.
Moonstar:
hope your feeling is right....
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