Animal Pictures Archive mobile
질의: Tropical fish결과: 626번째/760
Snail Kite (Rostrhamus sociabilis) - Wiki
제목: Snail Kite (Rostrhamus sociabilis) - Wiki
Caracolero-Snail Kite (Rostrhamus sociabilis).jpg
해상도: 353x533 파일크기: 55322 Bytes 등록시간: 2007:10:22 11:35:40

Snail Kite (Rostrhamus sociabilis) - Wiki


Snail Kite
From Wikipedia, the free encyclopedia

[Photo] Snail Kite (Rostrhamus sociabilis) adult male. Foto tomada por el autor Fernando Biol??. Rostrhamus sociabilis. License: public domain by the author, Fbiole.

The Snail Kite, Rostrhamus sociabilis, is a bird of prey within the family Accipitridae, which also includes the eagles, hawks and Old World vultures. Its relative, the Slender-billed Kite, is now again placed in Helicolestes, making the genus Rostrhamus monotypic. Usually placed in the milvine kites, the validity of that group is under investigation.

Description
Snail Kites are 45cm long with a 120cm wingspan. They have long, broad, and rounded wings. It is long-tailed, with a white rump and undertail coverts. The dark, deeply hooked beak is an adaptation to its diet.

The adult male has dark blue-gray plumage with darker flight feathers. The legs and cere are red. The adult female has dark brown upperparts and heavily streaked pale underparts. She has a whitish face with darker areas behind and above the eye. The legs and cere are yellow or orange. The immature is similar to adult female, but the crown is streaked.

The flight is slow, with the kite's head facing downwards as it looks for large snails, its main food.

Distribution and ecology
The Snail Kite breeds in tropical South America, the Caribbean and central and southern Florida, USA. It is resident all-year in most of its range, but the southernmost population migrates north in winter and the Caribbean birds disperse widely outside the breegding season.

The Snail Kite is a locally endangered species in the Florida Everglades, with a population of less than 400 breeding pairs. Research has demonstrated that water-level control in the Everglades is depleting the population of apple snails. However, this species is not generally threatened over its extensive range.

In fact, it might be locally increasing in numbers, such as in Central America. In El Salvador, it was first recorded in 1996. Since then, it has been regularly sighted, including immature birds, suggesting a resident breeding population might already exist in that country. On the other hand, most records are outside the breeding season, more indicative of post-breeding dispersal. In El Salvador, the species can be observed during the winter months at Embalse Cerr??n Grande, Laguna El Jocotal and especially Lago de G??ija. Pomacea flagellata apple snails were propagated in El Salvador between 1982 and 1986 as food for fish stocks, and it seems that the widespread presence of high numbers of these snails has not gone unnoticed by the Snail Kite.

This is a gregarious bird of freshwater wetlands, forming large winter roosts. Its diet consists almost exclusively of apple snails.

On May 17 2007, a birdwatcher photographed a Snail Kite feeding at a crawfish farm about 35 southeast of Columbia, South Carolina. The discovery, if confirmed by the South Carolina Bird Records Committee, may lead to testing of crawfish as an alternative food for the bird.

It nests in a bush or on the ground, laying 3-4 eggs.

http://en.wikipedia.org/wiki/Snail_Kite
The text in this page is based on the copyrighted Wikipedia article shown in above URL. It is used under the GNU Free Documentation License. You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.

Tropical fish
626/760
| 똑똑누리집 | 신규 사진 | 아무거나 | 동물유머 | English |
^o^ 동물그림창고 똑똑전화 누리집 ^o^