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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]
A diagram of a bird egg Eggs of various birds, labelled (Trinity College Zoological Museum, Dublin) Bird eggs are laid by the females and range in quantity from one (as in condors) to up to seventeen (the grey partridge). Clutch size may vary latitudinally within a species.
Bird meanings and symbolism are open to wide interpretation and can vary across cultures and traditions. Popularly, owls are associated with wisdom, and doves are widely associated with peace.
According to Doolittle, Cardinals are a symbol of change. "It can mean a huge shift coming in your life which can sometimes be viewed as an ending," she explains. But an ending isn't necessarily a ...
Clutch size varies with location: Northern Hemisphere birds lay more eggs than those in the Southern Hemisphere, and birds at higher latitudes have larger clutches than those closer to the equator. In central and northern Europe and Asia the clutch size is around 12, whereas it is around four in the tropics and seven in the subtropics.
Related: The Unexpected Spiritual Meaning of Spotting a Fox Is Seeing an Eagle Good Luck? It’s not every day that a person encounters an eagle while they’re out and about.
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]