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The number of eggs laid in a single brood is referred to as the clutch. Clutch size is usually within a small range of variation. Some birds respond to the accidental loss of eggs by laying a replacement egg. Others will stop laying based on the apparent size of the clutch.
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 ...
The northern cardinal (Cardinalis cardinalis), known colloquially as the common cardinal, red cardinal, or just cardinal, is a bird in the genus Cardinalis.It can be found in southeastern Canada, through the eastern United States from Maine to Minnesota to Texas, New Mexico, southern Arizona, southern California and south through Mexico, Belize, and Guatemala.
According to eBay policy, if a buyer opens an Item Not as Discussed (INAD) ticket, then you must accept the return and refund the money. The buyer keeps the items and sends an empty box back ...
Great Black-backed Gull (Larus marinus), small clutch.Clutch size refers to the number of eggs laid in a single brood by a nesting pair of birds. The numbers laid by a particular species in a given location are usually well defined by evolutionary trade-offs with many factors involved, including resource availability and energetic constraints.
A northern cardinal nest showing the nest structure and key features of their egg in Cardinalidae. Nearly all cardinalids are monogamous breeders and are highly territorial. Despite being monogamous this is only during the breeding season, and each year the birds might partner up with a different bird.
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg.
Records of single egg clutches are fairly common in Europe, with 3 being rare there but seemingly more common in North America, where up to 12% of clutches include 3 eggs. A 4 egg clutch is considered exceptional. [1] [51] The lowest mean clutch size known from surveys is 1.82 eggs in the Altai Mountains of Russia. [52]