A World First for Derby's Falcons - The Family Room Forums. - The Mid Deck

TexasJo wrote: When do they lay their eggs?
Breeding interval
Falcons typically raise one clutch yearly, although in rare circumstances more than one clutch may be attempted. If a first clutch is lost soon after laying, another clutch will be attempted after about 2 weeks.

Breeding season
Peregrine falcons breed between March and May, depending on latitude.

Eggs per season
2 to 6; avg. 4

Time to hatching
33 to 35 days

Last edited on Wed Jan 27th, 2010 07:59 am by dn31

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#17 Posted: Wed Jan 27th, 2010 02:33 pm

Thanks dn32 that's interesting!

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#18 Posted: Tue Feb 2nd, 2010 06:43 am

Another pic this morning.

Last edited on Tue Feb 2nd, 2010 07:08 am by dn31

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#19 Posted: Tue Feb 2nd, 2010 01:32 pm

Are they the same ones every year or new ones?

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#20 Posted: Tue Feb 2nd, 2010 04:02 pm

It will be the same ones

Peregrine mates mostly stay together forever like humans do. The female is the dominant partner. The male arrives at the eyrie about a week before the female and shows off for her by fancy flying. The male partner scratches out a nest in the rock or gravel, where the female lays her brown, speckled eggs.The father sits on the eggs 25% of the day, and the mother sits on the eggs 75% of the day. While one parent stays with the eggs, the other parent looks for food. The parent that is looking for food stashes it near the nest so that no predators will take it from them. The female lays 3-4 eggs a year over the course of several days. The eggs have to be incubated for 33 days, and have to be turned over to develop properly. But sometimes if the egg breaks, one of the parents eat the inside of the egg, probably to keep the nest clean. Gross! When the incubating is done, the falcon eyases may take three days from the time they start to break out of the egg until they are fully hatched. When the hatchlings hatch they have a big appetite. Yum Yummy!! The mother falcon broods the chicks, keeping them warm with special hot spots on her body called brood patches until their body gets efficient at making heat at about one week old, while the father hunts for his mate and chicks. Once the chicks are big enough to be left alone a little, the mother helps hunt too. After 5-6 weeks the eyas are now fledgelings with their real feathers and are ready to fly. Fledgelings know how to fly with out being taught. Parent peregrines bring food to the edge of the nest, so the eyases push and shove to get to it. Finally the eyas fly off the edge to get to the food. Even after they fledge, or leave the nest to fly for the first time, they stay with their parents for about 2 months learning to hunt. Immature falcons molt or lose their baby feathers and get their mature ones during their second spring when they are a little over a year old. Peregrine females grow larger then the males. The peregrine falcon has 12 different calls, all of which mean different things. To listen to our (470KB) recording of an arguement over food between two male peregrine falcons

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#21 Posted: Tue Feb 2nd, 2010 07:50 pm

Its a shame humans don't learn to have one mate h0099

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#22 Posted: Fri Feb 5th, 2010 04:39 pm

Another pic taken tonight at 5.17pm

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#23 Posted: Fri Feb 5th, 2010 05:02 pm

They are so beautiful and so peaceful looking.

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#24 Posted: Fri Feb 5th, 2010 08:39 pm

woodcock (Scolopax rusticola) and the video recording shows it was clearly alive and struggling to free itself from the peregrine's powerful talons. After a while the falcon dispatches the wader with a swift bite to its neck.

http://www.youtube.com/watch?v=rtiWWr3e8-U

Last edited on Fri Feb 5th, 2010 08:57 pm by dn31

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