Bird Egg

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Bird Egg

the egg of a bird consisting of an ovum together with its protective envelopes: the yolk albumen, inner shell membrane, outer shell membrane and shell. Bands of thick protein, or chalazae, hold the yolk so that the side on which the germinal disk appears is turned upward. At one end of the egg the outer shell membrane is layered, forming an air cell.

The size of a bird egg varies from 8 × 13 mm (hummingbird) to 135 × 170 (ostrich), and the number of eggs per clutch from one (Procellariiformes, many guillemots, lyrebirds) to 20 or more (Galliformes). The shape varies from spherical to elongate-oval. The eggs may be spotted or monotone, and range from white or light blue to almost black. A laid egg (except for an unfertilized egg) usually already contains an embryo. Bird eggs, especially those of poultry, are used by man as food. In a number of countries, eggs are gathered in large numbers at sites of colonial nesting, for example, at bird rookeries.

A. I. IVANOV

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No references found			A WILDLIFE buff has admitted illegally possessing bird eggs. Egg collector admits charge by The Journal (Newcastle, England) The small dark brown egg, with Darwin's name written on it, was found by Liz Wetton, 80, a volunteer at the Zoology Museum's bird egg collection. Lost Darwin 'evolution egg' surfaces 200 years on by Asian News International Byline: By Helen Thomas A MAN has been found guilty of possessing four wild bird eggs. Man caught with wild birds' eggs; CRIME: 'Trophy hunting' said to be ... by Coventry Evening Telegraph (England)			Biržai Bira biradial symmetry biradical Birago Diop Birakan biramous Biratnagar Birbal Sahni Birch Birch Bark Birch Bay State Park Birch Forests Birch Lake State Recreation Area Birch Point State Park birch tar oil Birch, Arthur Birch, Francis Birch, Harvey Birch, Samuel Birch, Thomas Birch, William Russell Birchall, Frederick Thomas Birchbark Canoe bird Bird Egg bird flu Bird Island bird louse Bird Migration bird of paradise bird of prey bird peck Bird Rookery bird sanctuary bird screen bird stone Bird Studies Canada Bird Woman bird's eye bird's-beak molding bird's-eye lamp bird's-eye maple bird's-eye rot bird's-eye spot bird's-foot delta bird's-foot trefoil bird's-mouth bird's-mouth joint Bird, Isabella Bird, Junius			bird bug Bird cage Bird call Bird Carvers Online bird cherries bird cherry bird cherry bird cherry bird cherry tree Bird Clubs of America Bird Clubs of Virginia bird colonel bird colonel bird colonel Bird Conservation Nepal Bird Conservation Region Bird Conservation Union of Georgia Bird Control Unit bird dog bird dog bird dog bird dog bird dog Bird dogs Bird dogs Bird down Bird down Bird droppings Bird droppings Bird droppings Bird Egg bird face bird face retrognathism bird family bird fancier Bird Fancier’s Lung Bird farm Bird farm bird feed bird feeder Bird feeders bird flea bird flea bird flea Bird flight patterns Bird flu Bird flu Bird flu Bird flue Bird flue Bird flue bird food bird genus bird handler's disease Bird Handler’s Disease Bird Handler’s Disease Bird Handler’s Disease Bird Hazard Working Group Bird house Bird in Flight bird in the hand is worth two in the bush

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