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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 ...
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]
Two eyes usually move independently, [6] [7] and in some species they can move coordinatedly in opposite directions. [8] Birds with eyes on the sides of their heads have a wide field of view, useful for detecting predators, while those with eyes on the front of their heads, such as owls, have binocular vision and can estimate distances when ...
In comparison, a group of eggs and the offspring that hatch from them are frequently called a clutch, while young birds are often called a brood. Animals from the same litter are referred to as littermates.
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]
The black-headed bunting (Emberiza melanocephala) is a passerine bird in the bunting family Emberizidae. It breeds in south-east Europe east to Iran and migrates in winter mainly to India, with some individuals moving further into south-east Asia. Like others in its family, it is found in open grassland habitats where they fly in flocks in ...
The documentary “Sue Bird: In the Clutch,” about the basketball legend’s final WNBA season and her impact on sports, has been acquired following its buzzy Sundance debut. Wolfe Releasing ...
The shikra (Tachyspiza badia) is a small bird of prey in the family Accipitridae found widely distributed in Asia and Africa where it is also called the little banded goshawk. The African forms may represent a separate species but have usually been considered as subspecies of the shikra.