The brown-hooded gull (Chroicocephalus maculipennis) is a species of gull found in Argentina, Brazil, Chile, the Falkland Islands, and Uruguay. Its specific epithet, maculipennis, means 'spotted wings' (macula + penna). It is a white bird with a brown head and red beak and feet.
The mature bird has a dark brown head and throat with a white semicircle around the posterior part of the eye, while the neck, chest and abdomen are white. The beak and legs are red. The primary flight feathers are dark gray, while the secondaries and covert feathers are a lighter gray. This bird may be confused with the Franklin's gull. There is no significant sexual dimorphism.[1]
Distribution and habitatedit
This species is found in South America, breeding from Argentine and Chilean Patagonia, the Falkland Islands and Uruguay. In winter, its range extends up to the coasts of north Chile and central Brazil.[2] Its natural habitats include freshwater lakes, intertidal marshes, river banks, and open fields.[1]
These are gregarious birds. Their diet consists primarily of insects, carrion, and food items obtained through kleptoparasitism from other birds. In particular they steal crabs from the red-gartered coot (Fulica armillata) and clams from the American oystercatcher (Haematopus palliatus). The profitability of stealing from these birds is 3.5 times higher for the coots than the oystercatchers.[3] They build floating nests among aquatic vegetation at the edges of ponds and lakes. Three to four eggs are usually laid.[1]
The black-headed duck has a brood parasite relationship with the brown-hooded gull in which a female will lay an egg in the nest of a brown-hooded gull with the intent of having the host gull incubate the egg instead of herself.[4]
Referencesedit
^ abcGaray Nancul, G; Guineo Nancul, O (1997). Torres Del Paine - Fauna Flora and Mountains (1st ed.). Punta Arenas, Chile: Paraguaya 126. p. 74. ASIN B000WY96IQ.
^. BirdLife International. Cambridge, England. 2013. Archived from the original on 2016-08-06. Retrieved 2013-02-13.
^García, Germán Oscar; Favero, Marco; Vassallo, Aldo Iván (2012). "Interspecific kleptoparasitism by Brown-headed Gulls (Chroicocephalus maculipennis) on two hosts with different foraging strategies: a comparative approach". Emu. 112 (3): 227–233. doi:10.1071/MU11085. hdl:11336/75592. S2CID 85817076.
^MaurícioI,Giovanni N.; Bencke, Glayson Ariel; Repenning, Márcio; Machado, Diogenes Borges; Dias, Rafael A.; Bugoni, Leandro (2013). "Review of the breeding status of birds in Rio Grande do Sul, Brazil". Iheringia. Série Zoologia. 103 (2): 163. doi:10.1590/S0073-47212013000200012.
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
February 29, 2024
brown, hooded, gull, brown, hooded, gull, chroicocephalus, maculipennis, species, gull, found, argentina, brazil, chile, falkland, islands, uruguay, specific, epithet, maculipennis, means, spotted, wings, macula, penna, white, bird, with, brown, head, beak, fe. The brown hooded gull Chroicocephalus maculipennis is a species of gull found in Argentina Brazil Chile the Falkland Islands and Uruguay Its specific epithet maculipennis means spotted wings macula penna It is a white bird with a brown head and red beak and feet Brown hooded gullConservation statusLeast Concern IUCN 3 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder CharadriiformesFamily LaridaeGenus ChroicocephalusSpecies C maculipennisBinomial nameChroicocephalus maculipennis Lichtenstein MHC 1823 Nonbreeding Year roundSynonymsLarus maculipennis Contents 1 Description 2 Distribution and habitat 3 Ecology and behavior 4 ReferencesDescription edit nbsp In flight San Miguel del Monte Buenos Aires ArgentinaThe mature bird has a dark brown head and throat with a white semicircle around the posterior part of the eye while the neck chest and abdomen are white The beak and legs are red The primary flight feathers are dark gray while the secondaries and covert feathers are a lighter gray This bird may be confused with the Franklin s gull There is no significant sexual dimorphism 1 Distribution and habitat editThis species is found in South America breeding from Argentine and Chilean Patagonia the Falkland Islands and Uruguay In winter its range extends up to the coasts of north Chile and central Brazil 2 Its natural habitats include freshwater lakes intertidal marshes river banks and open fields 1 Ecology and behavior edit nbsp A group of brown hooded gulls in Torres del Paine National Park Chile The bird in the foreground is a juvenile These are gregarious birds Their diet consists primarily of insects carrion and food items obtained through kleptoparasitism from other birds In particular they steal crabs from the red gartered coot Fulica armillata and clams from the American oystercatcher Haematopus palliatus The profitability of stealing from these birds is 3 5 times higher for the coots than the oystercatchers 3 They build floating nests among aquatic vegetation at the edges of ponds and lakes Three to four eggs are usually laid 1 nbsp Chroicocephalus maculipennis MHNTThe black headed duck has a brood parasite relationship with the brown hooded gull in which a female will lay an egg in the nest of a brown hooded gull with the intent of having the host gull incubate the egg instead of herself 4 References edit a b c Garay Nancul G Guineo Nancul O 1997 Torres Del Paine Fauna Flora and Mountains 1st ed Punta Arenas Chile Paraguaya 126 p 74 ASIN B000WY96IQ Species factsheet Larus maculipennis BirdLife International Cambridge England 2013 Archived from the original on 2016 08 06 Retrieved 2013 02 13 Garcia German Oscar Favero Marco Vassallo Aldo Ivan 2012 Interspecific kleptoparasitism by Brown headed Gulls Chroicocephalus maculipennis on two hosts with different foraging strategies a comparative approach Emu 112 3 227 233 doi 10 1071 MU11085 hdl 11336 75592 S2CID 85817076 MauricioI Giovanni N Bencke Glayson Ariel Repenning Marcio Machado Diogenes Borges Dias Rafael A Bugoni Leandro 2013 Review of the breeding status of birds in Rio Grande do Sul Brazil Iheringia Serie Zoologia 103 2 163 doi 10 1590 S0073 47212013000200012 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 Retrieved from https en wikipedia org w index php title Brown hooded gull amp oldid 1191145759, wikipedia, wiki, book, books, library,
