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Kinosternids lay about four hard-shelled eggs during the late spring and early summer. After hatching, some species overwinter in a subterranean nest, emerging the following spring. Some adults also spend the winter on land, constructing a burrow with a small air hole used on warm days.
Ploceidae is a family of small passerine birds, many of which are called weavers, weaverbirds, weaver finches, or bishops.These names come from the nests of intricately woven vegetation created by birds in this family.
Raccoons, and some rodents, use leaves to build nests underground and in trees. Tree squirrels build their nests in trees, while voles nest in tall grass. [7] In some species, the nest serve as homes for adults while in others they are used to raise young. The duck-billed platypus and the echidna lay eggs in nests. [3]
In species in which eggs are laid then buried in sand, indentations in the sand can be a clue to imminent hatching. [9] In sea turtles, this usually occurs about 60 days after the laying of eggs, and often at night. [10] However, exposure to xenobiotic compounds, especially endocrine-disrupting compounds, can affect hatchling sex ratios as well ...
Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering.
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Generally, herons lay between three and seven eggs. Larger clutches are reported in the smaller bitterns and more rarely some of the larger day herons, and single-egg clutches are reported for some of the tiger herons. Clutch size varies by latitude within species, with individuals in temperate climates laying more eggs than tropical ones.
Nest Egg may refer to: Operation Nest Egg, a biodiversity program to protect kiwi populations; Operation Nestegg, a 1944 codename for Task Force 135 in the Channel ...