Animalia > Chordata > Aves > Procellariiformes > Procellariidae > Pterodroma > Pterodroma phaeopygia

Pterodroma phaeopygia (Galapagos Petrel)

Synonyms: Oestrelata phaeopygia (homotypic); Pterodroma phaeopygia phaeopygia
Language: French; Spanish

Wikipedia Abstract

The Galápagos petrel (Pterodroma phaeopygia) is a large, long-winged gadfly petrel. The species was once known as the dark-rumped petrel, although recent taxonomic changes have eliminated that name from current use. (See also Hawaiian petrel, from which this species was split.) The local people in the Galápagos Islands often call this species the "patapegada".
View Wikipedia Record: Pterodroma phaeopygia

Endangered Species

Status: Critically Endangered
View IUCN Record: Pterodroma phaeopygia

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 5.41372
EDGE Score: 4.63103


Adult Weight [1]  429 grams
Birth Weight [3]  56 grams
Breeding Habitat [2]  Oceanic islands, Pelagic
Wintering Geography [2]  Pacific Ocean
Wintering Habitat [2]  Pelagic
Diet [4]  Carnivore (Invertebrates), Piscivore
Diet - Fish [4]  50 %
Diet - Invertibrates [4]  50 %
Forages - Water Surface [4]  80 %
Forages - Underwater [4]  20 %
Clutch Size [5]  1
Clutches / Year [5]  1
Egg Length [1]  2.559 inches (65 mm)
Egg Width [1]  1.772 inches (45 mm)
Fledging [1]  90 days
Incubation [5]  55 days
Maximum Longevity [1]  35 years
Migration [6]  Intraoceanic
Wing Span [7]  3.411 feet (1.04 m)


Name Countries Ecozone Biome Species Report Climate Land
Galápagos Islands scrubland mosaic Ecuador Neotropic Deserts and Xeric Shrublands

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Archipelago de Colon Biosphere Reserve 34336011 Galapagos Islands, Ecuador  
Hawaii Volcanoes National Park 177278 Hawaii, United States
Hawaiian Islands Biosphere Reserve 245981 Hawaii, United States  
Kaloko-Honokohau National Historical Park   Hawaii, United States
Puukohola Heiau National Historic Site   Hawaii, United States  

Important Bird Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Tumbes-Choco-Magdalena Colombia, Ecuador, Panama, Peru Yes

Prey / Diet

Prey / Diet Overlap

Range Map

External References


Attributes / relations provided by
1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
5de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
6Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
7del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
8FEEDING ECOLOGY OF THE DARK-RUMPED PETREL IN THE GALAPAGOS ISLANDS, M. J. Imber, J. B. Cruz, J. S. Grove, R. J. Lavenberg, C. C. Swift, F. Cruz, The Condor 94:437-447 (1992)
9Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0