ibis

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ibis

(ī`bĭs), common name for wading birds with long, slender, decurved bills, found in the warmer regions of both hemispheres. The body is usually about 2 ft (61 cm) long. Most ibises nest in colonies. They feed in ponds, lakes, and brackish marshes on fish and other aquatic animals. The sacred ibis of ancient Egypt, Threskiornis aethiopica, a white and black bird, no longer frequents the Nile basin, although it inhabits other parts of Africa. In the southern part of North America are found the white ibis, Eudocimus albus; the white-faced and eastern glossy ibises, Plegadis falcinellus; and a bird that was formerly called the wood ibis, which is really a storkstork,
common name for members of a family of long-legged wading birds. The storks are related to the herons and ibises and are found in most of the warmer parts of the world.
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. The scarlet ibis of South America, E. ruber, is occasionally seen in the S United States. Ibises are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Aves, order Ciconiiformes, family Threskiornithidae.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Ibis

 

a genus of birds of the order Ciconiiformes. The ibis is similar to the stork but differs from it by having a bald head and a more massive and prominent downwardly curved bill. There are three species. Ibis ibis is found on Madagascar and in Central and Southern Africa. The species /. leucocephalus and /. cinereus dwell in Southwest Asia.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

ibis

[′ī·bəs]
(vertebrate zoology)
The common name for wading birds making up the family Threskiornithidae and distinguished by a long, slender, downward-curving bill.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ibis

any of various wading birds of the family Threskiornithidae, such as Threskiornis aethiopica (sacred ibis), that occur in warm regions and have a long thin down-curved bill: order Ciconiiformes (herons, storks, etc.)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

IBIS

(I/O Buffer Information Specification) A format for defining the analog characteristics of the input and output of integrated circuits. IBIS models are ASCII files that provide the behavioral information required to model the device without divulging the proprietary design of the circuit. IBIS supports complex devices such as memory modules and MCMs.
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