Animalia > Chordata > Aves > Procellariiformes > Procellariidae > Pterodroma > Pterodroma axillaris

Pterodroma axillaris (Chatham Petrel)

Wikipedia Abstract

The Chatham petrel (Pterodroma axillaris) or ranguru (Maori) is a medium-sized, grey, white and black gadfly petrel. It is endemic to the Chatham Islands, New Zealand, and until recently was restricted to the 218-hectare Rangatira or South-East Island.
View Wikipedia Record: Pterodroma axillaris

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 11.1678
EDGE Score: 4.57824


Adult Weight [1]  200 grams
Diet [2]  Carnivore (Invertebrates), Piscivore
Diet - Fish [2]  50 %
Diet - Invertibrates [2]  50 %
Forages - Water Surface [2]  80 %
Forages - Underwater [2]  20 %
Clutch Size [1]  1
Incubation [3]  46 days
Wing Span [1]  28 inches (.7 m)


Name Countries Ecozone Biome Species Report Climate Land
Chatham Island temperate forests New Zealand Australasia Temperate Broadleaf and Mixed Forests  

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Chatham Islands New Zealand  

Biodiversity Hotspots

Name Location Endemic Species Website
New Zealand New Zealand Yes

Prey / Diet

Kondakovia longimana (Giant Warty Squid)[4]


Parasitized by 
Parapsyllus longicornis[5]


External References



Attributes / relations provided by
1New Zealand Department of Conservation
2Hamish 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
3Rayner, Matt J., Taylor, Graeme A., Gummer, Helen D., Phillips, Richard A., Sagar, Paul M., Shaffer, Scott A., and Thompson, David R. (2012). The breeding cycle, year-round distribution and activity patterns of the endangered Chatham Petrel (Pterodroma axillaris). EMU 112, 107–116.
4Jorrit 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.
5International Flea Database
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
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
Abstract provided by DBpedia licensed under a Creative Commons License