Search results
Results from the WOW.Com Content Network
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]
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 ...
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Incubation start time in the American coot is variable, and can begin anywhere from the deposition of the first egg to after the clutch is fully deposited. Starting incubation before the entire clutch has been laid is an uncommon practice among birds. [33] Once incubation starts it continues without interruption.
Original file (SVG file, nominally 400 × 91 pixels, file size: 36 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
In non-breeding plumage, the cap is brown and the facial markings are less distinct. The song is a trill and the bird has a piercing flight call that can be heard while it is migrating at night. In the winter, Chipping Sparrows are gregarious and form flocks, sometimes associating with other bird species.
The generic name, Podiceps, comes from two Latin words: podicis, meaning ' vent ' or ' anus ', and pes meaning ' foot '. [10] This is a reference to the attachment point of the bird's legs at the extreme back end of its body. The specific epithet nigricollis is Latin for ' black-necked ': niger means ' black ' and collis means ' neck '. [11]
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...