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A sea turtle clutch. A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest. In birds, destruction of a clutch by predators (or removal by humans, for example the California condor breeding program) results in double-clutching. The technique is used to double ...
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Avian clutch size should be proportional to breeding season resource productivity per breeding pair of birds. [10] This relationship has been found in a series of studies from Alaska and Costa Rica. [10] According to Ashmole's Hypothesis, the clutch size of resident birds is proportional to the level of competition with migrant birds. [11]
The average clutch size is four to six eggs per nest. Females lay one egg a day and incubation begins when the penultimate (second to last) egg is laid. Incubation lasts 15–16 days and the female is the main incubator, with some help from the male.
The following other wikis use this file: Usage on ce.wikipedia.org Сетал; Кеп:ЧӀагӀдаран хӀуманийн шлицийн кепаш
Habitat degradation is the major threat to this bird, since they depend on very limited coastal habitat on their wintering grounds, and very specific habitat in their boreal breeding grounds. [ citation needed ] Although buffleheads do use man-made nest boxes, they still need the forest habitat to thrive.
The following other wikis use this file: Usage on af.wikipedia.org Dubbelkoppelaarratkas; Usage on ar.wikipedia.org ناقل حركة مزدوج
The 1959 cartoon Clutch Cargo produced by Cambria Studios was the first to make use of the Syncro-Vox technique. [2] Clutch Cargo , along with fellow Cambria shows Space Angel and Captain Fathom , superimposed actors' lips voicing the scripted dialogue laid over the animated figures.