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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]
All bird eggs contain the following components: [1] The embryo is the immature developing chick; The amnion is a membrane that initially covers the embryo and eventually fills with amniotic fluid, provides the embryo with protection against shock from movement
Mid-19th century illustration showing the eggs of a number of bird species. Oology (/ oʊ ˈ ɒ l ə dʒ i /; [1] also oölogy) is a branch of ornithology studying bird eggs, nests and breeding behaviour. The word is derived from the Greek oion, meaning egg.
If, by chance, the bird is looking away from you, then Doolittle believes that the red Cardinal has messages for you, but "you may be missing [them] by being too busy or too distracted from your ...
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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