cormorant

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Related to Phalacrocorax: Phalacrocoracidae, Great Cormorant

cormorant

(kôr`mərənt), common name for large aquatic birds, related to the gannet and the pelican, and found chiefly in temperate and tropical regions, usually on the sea but also on inland waters. Cormorants are 2 to 3 ft (61–92 cm) long, with thick, generally dark plumage and green eyes. The feet are webbed, and the bill is long with the upper mandible terminally hooked. Expert swimmers, cormorants pursue fish underwater. In Asia they are used by fishermen who collar the leashed birds to prevent them from swallowing the catch. The double-crested cormorant of the Atlantic coast, Brandt's cormorant of the Pacific coast, and the red-faced cormorant, Phalacrocorax urile, are common forms. The glossy black European cormorant is widely distributed in the Northern Hemisphere. A South American cormorant is a source of guano. The great cormorant nests high in trees or, as in other species, on steep, rocky sea cliffs. Two to six eggs per clutch are laid by the female. The young are born blind, and the parents feed the nestlings with half-digested food which is dropped into the nests. Later, the young birds poke their heads into the gullet of the adults to feed. Cormorants are long-lived; a banded one was observed after 18 years. Cormorants 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 Pelecaniformes, family Phalacrocoracidae.

cormorant

any aquatic bird of the family Phalacrocoracidae, of coastal and inland waters, having a dark plumage, a long neck and body, and a slender hooked beak: order Pelecaniformes (pelicans, etc.)
References in periodicals archive ?
1997: Roach rules: shoaling fish are a constant factor in the diet of cormorants Phalacrocorax carbo in Switzerland.
Post fledging survival to breeding age of Shags Phalacrocorax aristotelis in relation to year, date of fledging and brood size.
1,67 [+ or -] 2,89 3,6 Aves costeras Haemotopus palliatus 4,33 [+ or -] 4,04 16,0 Larus dominicanus 10,33 [+ or -] 3,51 38,3 Numenius phaeopus 2,67 [+ or -] 2,31 9,9 Haemotopus ater 0,67 [+ or -] 1,15 2,5 Pelecanus thagus 0,33 [+ or -] 0,58 1,2 Leucophaeus modestus 0,67 [+ or -] 1,15 2,5 Phalacrocorax brasilianus 0,67 [+ or -] 0,58 2,5 Muscisaxicola maclovianus Egretta thula 3,33 [+ or -] 4,16 12,3 Aphriza virgata 3,67 [+ or -] 4,73 13,6 Lessonia rufa 0,33 [+ or -] 0,58 1,2 Cinclodes sp.
de muestras HA (1) APMV-1 IA Subtipo Phalacrocorax 90 0 - - - brasilianus Fulica ardesiaca 80 1 - + H12N5 Calidris alba 20 0 - - - Larus modestus 100 0 - - - Larus cirrocephalus 10 0 - - - Anas bahamensis 180 3 + - - Numenius phaeopus 130 0 - - - Anas cyanoptera 60 0 - - - cyanoptera Ardea alba 10 0 - - - Egreta thula 10 0 - - - Arenaria interpres 20 6 - + H12N5 Himantopus 30 0 - - - mexicanus Larosterna inca 30 0 - - - Sula v ariegata 10 0 - - - Gallinula chorlopus 80 0 - - - Haematopus 10 0 - - - palliatus Larus pipixcan 20 0 - - - Nicticora 10 0 - - - nicticorax Total 900 10 3 7 (1) Hemoaglutinacion
Con respecto al estado de amenaza, segun la clasificacion global (BirdLife, 2010), una especie esta clasificada como amenazada: Sternula lorata (Philippi & Landbeck, 1861), clasificada como "En Peligro", mientras que segun la legislacion peruana, cuatro especies estan clasificadas como "En Peligro": Pelecanus thagus (Molina, 1782), Sula variegata (Tschudi, 1843), Phalacrocorax gaimardi (Lesson & Garnot, 1828), Phalacrocorax bougainvillii (Lesson, 1837) y Platalea ajaja (Linnaeus, 1758) y cuatro como "Vulnerable": Netta erythrophthalma (Wied, 1832), Sternula lorata, Larosterna inca (Lesson, 1827) y Sterna hirundinacea (Lesson, 1831).
Entre las especies colectadas anteriormente que no registramos, se encuentran tres especies de aves acuaticas: Phalacrocorax brasilianus, Gallinago delicata y Gallinago nobilis.
In the south and southwest of the island, where about 4500 nesting Peruvian Boobies Sula variegate and 500 Guanay cormorants Phalacrocorax bougainvilli were recorded, 65 Wedge-rumped storm petrel nests were found.
Esta espécie foi registrada em biguás, Phalacrocorax brasilianus, da planície de inundação do alto rio Paraná por Machado (2000), com altas taxas de prevalência e intensidade média (80% e 61,8 espécimes, respectivamente), sendo classificada como uma espécie abundante e comum.
1 Double-crested Cormorant Phalacrocorax auritus & Neotropic Phalacrocorax brasilianus Yellowlegs (3) 113 270 2.