Manitoba Peregrines > U of Alberta, Edmonton, Alberta
U of Alberta - 2009 / Damon & Radisson
The Peregrine Chick:
Bev or Eli have probably mentionned this somewhere else on this thread in which case I apologize for the duplication. The male at the U of A campus is an Edmonton wild-hatched male from 2002 - so he's seven years old. Band number is black (wild hatched bird) O over Y.
Don't know if he is the same male as last year but have asked for some family tree information on him but considering this is the busy season, I don't expect to get anything for awhile. When I do however, I will post it here.
bev.:
14:46
They are doing a great job of sharing duties again. :)
bev.:
thanks TPC
12:36
RAdisson is back she never ventures far. she usually does a fly around once and then goes on light on heart building or on ledge on Nest building
carly:
2:20 pm EST egg and mom check; mom seems to have flown off to the spa after her labour and eggs are home alone :P
The Peregrine Chick:
Penultimate is usually third egg with a 4-5 clutch, though some birds will wait until 4 in a 5 egg clutch. In colder climates (and I daresay colder years) incubation can start after the first or second egg.
30 days from the start of incubation is a standard start date for watching for hatching. The range used to be 28-29 days, but it has been revised to 33-35 with a mean of 33.5. Having said that, Madame used to hatch them out at 28 days more years than not whereas Princess and Trey last year I believe they were at 37 days when their eggs started hatching.
So the short answer is, because of the range in incubation period length and because a pair may begin incubating earlier/later depending on other variables, count 30 days from the third egg (or last if nest less than 3) and you usually won't miss a hatch date.
Third egg was laid on May 8th so thirty days takes you/us to June 7th. Folks should be sure to dial up a couple of days early just in case though ....
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