Sooty gull

The sooty gull (''Ichthyaetus hemprichii'') is a species of gull in the family Laridae, also known as the Aden gull or Hemprich's gull. It is found in Bahrain, Djibouti, Egypt, Eritrea, India, Iran, Israel, Jordan, Kenya, Lebanon, Maldives, Mozambique, Oman, Pakistan, Palestine, Qatar, Saudi Arabia, Somalia, Sri Lanka, Sudan, Tanzania, United Arab Emirates, and Yemen. As is the case with many gulls, it has traditionally been placed in the genus ''Larus''. The sooty gull is named in honour of the German naturalist Wilhelm Hemprich who died in 1825 while on a scientific expedition to Egypt and the Middle East with his friend Christian Gottfried Ehrenberg.Bauer, A. M. (2000) 'The Symbolae Physicae and the herpetology of Hemprich and Ehrenberg’s expedition to Egypt and the Middle East" '' International Society for the History and Bibliography of Herpetology Newsletter and Bulletin'' 2(1): pp. 8–16

Distribution and habitat

The sooty gull is native to the Red Sea, the Gulf of Aden, the Gulf of Oman, the Persian Gulf and its range extends as far east as Pakistan. It is also native to the east coast of Africa as far south as Tanzania and Mozambique. It occurs as a vagrant in India, Sri Lanka, the Maldives, Jordan, Lebanon, Israel and Bahrain. It is a coastal bird, seldom going further out to sea than about beyond coastal reefs although it has occasionally been seen from land. It frequents ports and harbours, the coast, inshore islands and the intertidal zone. It seldom moves inland or visits freshwater locations. It is nomadic or partially migratory and many populations move southwards after breeding, though Red Sea populations seem to be relatively sedentary.

Behaviour

The sooty gull is a predator and scavenger. It feeds on discarded fish and fish offal, other small fish that it catches itself, prawns, newly hatched turtles and the eggs and chicks of other sea birds.

Breeding takes place during the summer. It usually nests in small colonies on inshore coral islands, particularly outer islands protected by reefs with rock, sand and sparse vegetation. Nests are sometimes solitary, particularly in Africa, or may be scattered among the nests of other colonial sea birds. The nest may consist of a bare scrape in the coral in an exposed position or may be protected by a coral overhang or sheltered beneath a low-growing mangrove or a seepweed bush.

Status

The IUCN lists the sooty gull as being of "Least Concern". This is because it has a very wide range and its total population is large. The population trend is believed to be downwards but the rate of decrease is insufficient to warrant listing the bird in a more threatened category. The main threats faced by the bird are from the exploration of some of its traditional breeding grounds for oil, land reclamation, and the possibility of oil spills.

References

* Pons J.M., Hassanin, A., and Crochet P.A.(2005). ''Phylogenetic relationships within the Laridae (Charadriiformes: Aves) inferred from mitochondrial markers.'' Molecular Phylogenetics and Evolution 37(3):686–699

External links

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Photos

{{Taxonbar, from=Q589869

sooty gull
Birds of East Africa
Birds of the Arabian Peninsula
Birds of Pakistan
sooty gull
Taxa named by Carl Friedrich Bruch
Taxonomy articles created by Polbot
Taxobox binomials not recognized by IUCN