AB / Calgary - U of Calgary - 2009-16

[Kinderchick]

Still no news about a 4th hatch here. I'm thinking the egg was not viable.

[Kinderchick]

According to the chat board on the website, the 4th egg hasn't yet hatched after all. So maybe it won't?

[Kinderchick]

I'm not absolutely certain but I think Callie's 4th chick may have hatched.

[Kinderchick]

2nd chick hatched late last evening & 3rd chick just hatched. 1 more to go!

[Kinderchick]

Still just 1 hatch here as far as I can tell.

[Kinderchick]

Great news about Callie's 1st hatch. But I am concerned about all the rain that is coming her way this weekend.

[The Peregrine Chick]

Sure sounds like Callie and her mate might be getting a bit wet with 80-100mm of rain this weekend!  Their nest ledge looks like it has a really good overhang so it will be interesting to see how it performs under "big wet" conditions.

[MayShowers]

Very exciting for this site.  I also hope Callie can keep her chicks warm, the forcast doesn't look so good for the next few days.  In fact I noticed there is a heavy rainfall warning for the City of Calgary for this weekend

Warnings
City of Calgary
10:22 AM MDT Friday 24 May 2013
Rainfall warning for
City of Calgary continued

Total rainfall amounts of 80 to 100 millimetres.

A slow moving weather system continues to bring rain to much of Western Alberta. Rainfall from the system will gradually taper off through the weekend as the storm weakens. Total rainfall amounts of 80 to 100 millimetres are expected by the end of the event.

[RCF]

First hatch this morning. 

[Kinderchick]

The camera view has been changed at this nest site to a much closer view. Since Callie laid her 3rd egg on April 21st and hard incubation began then, I'm guessing that chicks should be hatching any time now. According to my calculations, this is Day 31. The people on the chat board at this website are saying that 3 days of heavy rain are coming their way. Sure do hope Callie will be able to keep her chicks warm & dry.

[The Peregrine Chick]

...And incubation starts after egg #3 has been laid.  Given that egg # 3 was laid on the 21st, Callie is definitely in "hard incubation".    I'd say look for chicks about the Victoria Day weekend!

Didn't remember that "hard incubation" begins after 3rd egg has been laid. What if a PF lays 5 eggs, TPC? Does "hard incubation" always begin after the 3rd egg has been laid?

4 eggs is a standard number for eggs, the range is from 2 to 5.  Incubation in the majority of cases begins shortly after the penultimate (second to last) egg is laid.  The time between eggs 3 and 4 can be as long 72 hours hours though usually it is much quicker so that all the chicks bake the same amount of time hatch out together.  Weather can influence the start of incubation however - colder and they will get on the eggs after #2, warmer they may not get down to hard incubation for a couple of extra days.  Think of hard incubation as being velcroed to the egg, ie, very little time when one of the parents isn't on them either keep them warm or keeping them from getting too hot.

[RCF]

Four eggs!!! 

[Kinderchick]

...And incubation starts after egg #3 has been laid.  Given that egg # 3 was laid on the 21st, Callie is definitely in "hard incubation".    I'd say look for chicks about the Victoria Day weekend!

Didn't remember that "hard incubation" begins after 3rd egg has been laid. What if a PF lays 5 eggs, TPC? Does "hard incubation" always begin after the 3rd egg has been laid?

[The Peregrine Chick]

1st egg was laid on the 16th, 2nd egg laid on the 18th and 3rd egg laid on the 21st. I'm not absolutely certain but I think Callie is into hard incubation now. And Calllie has been positively identified as the resident female at this nestsite, TPC, if you want to update the thread header. However, male has yet to be ID'd.

Thanks for confirming the name Kinderchick, will change the thread title.
And incubation starts after egg #3 has been laid.  Given that egg # 3 was laid on the 21st, Callie is definitely in "hard incubation".    I'd say look for chicks about the Victoria Day weekend!

[Kinderchick]

1st egg was laid on the 16th, 2nd egg laid on the 18th and 3rd egg laid on the 21st. I'm not absolutely certain but I think Callie is into hard incubation now. And Calllie has been positively identified as the resident female at this nestsite, TPC, if you want to update the thread header. However, male has yet to be ID'd.