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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]
The zoologist J.L. Cloudsley-Thompson argued that a large bird would be able to produce more young than a small bird. [4] Williams replied that this would be a bad reproductive strategy, as large birds have lower mortality and therefore a higher residual reproductive value over their whole lives (so taking a large short-term risk is unjustified ...
A hoopoe was a leader of the birds in the Persian book of poems The Conference of the Birds (Mantiq al-Tayr by Attar) and when the birds seek a king, the hoopoe points out that the Simurgh was the king of the birds. [34] Hoopoes were thought of as thieves across much of Europe, and harbingers of war in Scandinavia. [35]
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Virtually all the raptorial birds sympatric in distribution with the blue jay may prey upon it, especially swift bird-hunting specialists such as the Accipiter hawks. Diverse predators may prey on jay eggs and young up to their fledgling stage, including tree squirrels , snakes , cats , crows , raccoons , opossums , other jays and possibly many ...
In director Sarah Dowland’s “Sue Bird: In the Clutch,” that objectivity-questioning … ‘Sue Bird: In the Clutch’ Review: Adulatory Portrait of a WNBA Legend Takes the Softball Approach ...
The Venezuelan troupial (Icterus icterus) is the national bird of Venezuela. It is found in Colombia, Venezuela, and the Caribbean islands of Aruba, Curaçao, Bonaire, Trinidad, and Puerto Rico. Together with the orange-backed troupial and campo troupial, it was previously part of a superspecies simply named the troupial that was split.