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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 ...
The 1959 cartoon Clutch Cargo produced by Cambria Studios was the first to make use of the Syncro-Vox technique. [2] Clutch Cargo, along with fellow Cambria shows Space Angel and Captain Fathom, superimposed actors' lips voicing the scripted dialogue laid over the animated figures. [3]
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]
Clutch size is usually just one or two but sometimes to 4. [4] About 80% of nests where eagles have managed to lay eggs contain two eggs. [8] Mean clutch size is apparently somewhat higher in the western part of the range. [197] The female lays multi-egg clutches by some 3 days or so apart. [8]
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]
The secretarybird or secretary bird (Sagittarius serpentarius) is a large bird of prey that is endemic to Africa. It is mostly terrestrial, spending most of its time on the ground, and is usually found in the open grasslands and savanna of the sub-Saharan region .
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.
Female butcherbirds lay between two and five eggs in a clutch, [2] with the larger clutch sizes in more open-country species. Except in the rainforest-dwelling hooded and black butcherbirds, [ 3 ] cooperative breeding occurs, with many individuals delaying dispersal to rear young. [ 4 ]