Animalia > Chordata > Aves > Charadriiformes > Laridae > Leucophaeus > Leucophaeus modestus

Leucophaeus modestus (Grey Gull; Gray Gull)

Synonyms: Larus modestus

Wikipedia Abstract

The grey gull (Leucophaeus modestus) is a medium-sized gull native to South America. Unusual among gulls, it breeds inland in the extremely dry Atacama Desert in northern Chile, although it is present as a non-breeding bird along much of the Pacific coast of South America.
View Wikipedia Record: Leucophaeus modestus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 2.92808
EDGE Score: 1.36815


Clutch Size [1]  2


Name Countries Ecozone Biome Species Report Climate Land
Atacama desert Chile Neotropic Deserts and Xeric Shrublands
Chilean matorral Chile Neotropic Mediterranean Forests, Woodlands, and Scrub
Ecuadorian dry forests Ecuador Neotropic Tropical and Subtropical Dry Broadleaf Forests
Guayaquil flooded grasslands Ecuador Neotropic Flooded Grasslands and Savannas
Sechura desert Peru Neotropic Deserts and Xeric Shrublands
Tumbes-Piura dry forests Ecuador, Peru Neotropic Tropical and Subtropical Dry Broadleaf Forests
Valdivian temperate forests Chile, Argentina Neotropic Temperate Broadleaf and Mixed Forests
Western Ecuador moist forests Colombia, Ecuador Neotropic Tropical and Subtropical Moist Broadleaf Forests

Important Bird Areas

BirdLife Species Factsheet: View Factsheet
Name Location  IBA Criteria   Website   Climate   Land Use 
Isla Pachacámac Peru A1, A4ii
Laguna de Ite Peru A1, A2, A3, A4i, A4iii
Río Tambo y Lagunas de Mejía Peru A1, A2, A3, A4iii
Reserva Nacional de Paracas Peru A1, A2, A3, A4i, A4ii

Biodiversity Hotspots

Name Location Endemic Species Website
Chilean Winter Rainfall-Valdivian Forests Chile No
Tumbes-Choco-Magdalena Colombia, Ecuador, Panama, Peru No

Prey / Diet

Emerita analoga (Pacific sand crab)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Pelecanoides garnotii (Peruvian Diving Petrel)1


Parasitized by 
Cardiocephaloides physalis <Unverified Name>[3]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Chicago Zoological Park
Paignton Zoo Environmental Park
Tiergarten Heidelberg

Range Map



Attributes / relations provided by 1Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303 2DIET AND FEEDING BEHAVIOUR OF OLROG'S GULL LARUS ATLANTICUS IN BAHIA BLANCA, ARGENTINA, J. KASPAR V. DELHEY, MARTINA CARRETE AND MARIANO M . MARTÍNEZ, ARDEA 89(2), 2001 3Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access