(Pirmā ola perēta 1 dienu)
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4.04 Harieta atstāja olu

Atgriezās pie olas 4.58.
Vēlāk vēlreiz Harieta cēlās un staigāja.
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Day 1 for Egg 1!! M15 flew into the nest at 3:31 am to make sure H & the egg were okay after he was hit by an owl. It was then M first saw his egg and incubated it. Today H & M cared for the egg like the pros they are. M brought grasses several times, and another large stick. Both took turns incubating, turning the egg and keeping it just the right temperature while delaying full incubation (to ensure close hatch dates and lessen competition between hatchlings).
Tracey Reynolds Pinette
Many of you have asked why Harriet and/or M15 are not sitting on, and incubating their precious egg continuously.
It's called delayed incubation. Development does not begin until the onset of incubation so this delay serves to synchronize the brood. Eagles typically control incubation with the first egg which leads to asynchronous hatching. Delaying incubation helps assure that rapidly growing young are in the same stages of development. In the presence of an abundant food supply, more young will likely survive when incubation is delayed, since there will be less variation in size and ability between older and younger siblings, and food should be shared more equitably as a result. Not all birds do this.
You will see the parents often keep that first egg uncovered for short periods of time until the second egg has been laid. Freshly laid eggs can spend a lot of time in the zone of suspended development with no harm to the egg or embryo. Our Harriet has typically laid 2 eggs each season.
Information provided by Raptor Resource Blog