Join for FREE
It only takes a minute!
Zeiss - Always on the lookout for something special – Shop now

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Personal tools
Main Categories

Brown-hooded Gull

From Opus

(Difference between revisions)
Revision as of 09:54, 22 January 2019 (edit)
Jmorlan (Talk | contribs)
(References - Updated and expanded)
← Previous diff
Revision as of 10:24, 22 January 2019 (edit) (undo)
Jmorlan (Talk | contribs)
(Behaviour - Added sections)
Next diff →
Line 27: Line 27:
[[Image:10884IMG 0973 Larus maculipennis.jpg|thumb|350px|right|Photo by {{user|BirdsPeru|BirdsPeru}}<br />Buenos Aires, [[Argentina]], October 2005]] [[Image:10884IMG 0973 Larus maculipennis.jpg|thumb|350px|right|Photo by {{user|BirdsPeru|BirdsPeru}}<br />Buenos Aires, [[Argentina]], October 2005]]
==Behaviour== ==Behaviour==
 +====Actions====
 +Catches prey directly from the water's surface, often around kelp beds. Also forages along the shore, as well as at sea, lakes, ponds and marshes.
====Breeding==== ====Breeding====
-They nest in a hollow lined with vegetation. The clutch consists of 2 to 4 eggs.+Sometimes solitary but they usually nest in colonies of 10-50 pairs, occasionally up to 500 nests. Colony locations often change from year to year according to food resources and nest site availability. The nest may be a floating platform of aquatic vegetation, a bulky grass structure on dry ground, or in a hollow lined with vegetation. Nests are often located in aquatic vegetation around edges of lakes, ponds or marshes, or sometimes on shingle beaches or rocky headlands, or in remote coastal plains. The clutch consists of 2 to 4 olive-brown eggs with rufous and greyish markings.
====Diet==== ====Diet====
-The diet includes marine invertebrates and small fish.+The diet includes small fish and marine invertebrates such as mollusks and crustaceans. On land, they take earthworms and insects. They also eat carrion and offal when available. In cultivated areas they may follow the plow where they feed on numerous invertebrates, including Lepidoptera and parasitic insects. Like most gulls, they also may steal food from other bird species too.
 +====Movements====
 +Relatively sedentary, dispersing to large rivers and coastal areas after breeding when some move north to Northern Chile and Eastern Brazil
 +====Vocalisations====
 +Calls include harsh croaking and screaming notes sometimes accompanying ritual displays.
 + 
==References== ==References==
#{{Ref-Clements6thAug18}}#[https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=F8F183DD629CAF89 Avibase] #{{Ref-Clements6thAug18}}#[https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=F8F183DD629CAF89 Avibase]

Revision as of 10:24, 22 January 2019

Photo by Fritz73Perito Moreno National Park, Santa Cruz, Argentina, 2001
Photo by Fritz73
Perito Moreno National Park, Santa Cruz, Argentina, 2001
Chroicocephalus maculipennis

Larus maculipennis

Contents

Identification

35–37 cm (13¾-14½ in)

  • Grey upperparts
  • White underparts
  • Brown hood
  • White eye crescents
  • White nape, neck and breast
  • Grey-white wings
  • Deep red bill and legs
Non-breedingPhoto by Rodrigo ReyesViña del Mar, Chile, June 2005
Non-breeding
Photo by Rodrigo Reyes
Viña del Mar, Chile, June 2005

Non-breeding adult

  • White head
  • Dark spots behind the eye

Similar Species

They bear a strong resemblance to the Black-headed Gull but Brown-hooded Gull has a slightly darker mantle, narrower dark subterminal band on its primaries, more dark at the bases of its outermost primaries, and usually distinct white primary tips cf. Black-headed.

Distribution

Southern South America : found in Ecuador, Bolivia, Brazil, Paraguay, Uruguay, Chile, Argentina and the Falkland Islands.

Taxonomy

This is a monotypic species[1], which is sometimes placed in genus Larus.

Habitat

Humid forest, coast, rivers, lakes and marshes.

Photo by BirdsPeruBuenos Aires, Argentina, October 2005
Photo by BirdsPeru
Buenos Aires, Argentina, October 2005

Behaviour

Actions

Catches prey directly from the water's surface, often around kelp beds. Also forages along the shore, as well as at sea, lakes, ponds and marshes.

Breeding

Sometimes solitary but they usually nest in colonies of 10-50 pairs, occasionally up to 500 nests. Colony locations often change from year to year according to food resources and nest site availability. The nest may be a floating platform of aquatic vegetation, a bulky grass structure on dry ground, or in a hollow lined with vegetation. Nests are often located in aquatic vegetation around edges of lakes, ponds or marshes, or sometimes on shingle beaches or rocky headlands, or in remote coastal plains. The clutch consists of 2 to 4 olive-brown eggs with rufous and greyish markings.

Diet

The diet includes small fish and marine invertebrates such as mollusks and crustaceans. On land, they take earthworms and insects. They also eat carrion and offal when available. In cultivated areas they may follow the plow where they feed on numerous invertebrates, including Lepidoptera and parasitic insects. Like most gulls, they also may steal food from other bird species too.

Movements

Relatively sedentary, dispersing to large rivers and coastal areas after breeding when some move north to Northern Chile and Eastern Brazil

Vocalisations

Calls include harsh croaking and screaming notes sometimes accompanying ritual displays.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Arthur Grosset
  4. Birds of the Falkland Islands
  5. Jaramillo, A. 2003. Birds of Chile. Princeton & Oxford: Princeton Univ. Press. ISBN 978-0691117409
  6. Howell, S.N.G. & Dunn, J.L. (2007) Gulls of the Americas. Houghton Mifflin, Boston.
  7. Burger, J., Gochfeld, M. & Garcia, E.F.J. (2019). Brown-hooded Gull (Larus maculipennis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53994 on 22 January 2019).
  8. Brown-hooded Gull (Chroicocephalus maculipennis), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/brhgul2

External Links

Advertisement


Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.29787707 seconds with 8 queries
All times are GMT. The time now is 07:03.