Animalia > Chordata > Aves > Procellariiformes > Procellariidae > Pterodroma > Pterodroma cahow

Pterodroma cahow (Cahow; Bermuda Petrel)

Synonyms: Aestrelata cahow (homotypic)
Language: French

Wikipedia Abstract

The Bermuda petrel (Pterodroma cahow) is a gadfly petrel. Commonly known in Bermuda as the cahow, a name derived from its eerie cries, this nocturnal ground-nesting seabird is the national bird of Bermuda and can be found on Bermudan money. It is the second rarest seabird on the planet and a symbol of hope for nature conservation. They are known for their medium-sized body and long wings. The Bermuda petrel has a greyish-black crown and collar, dark grey upper-wings and tail, white upper-tail coverts and white under-wings edged with black, and the underparts are completely white.
View Wikipedia Record: Pterodroma cahow

Endangered Species

Status: Endangered
View IUCN Record: Pterodroma cahow

EDGE Analysis

Uniqueness Scale: Similiar (0) 
2
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
51
 Unique & Vulnerable (100)
ED Score: 6.30184
EDGE Score: 4.06757
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  355 grams
Breeding Habitat [2]  Oceanic islands, Pelagic
Wintering Geography [2]  Atlantic Ocean
Wintering Habitat [2]  Pelagic
Diet [3]  Carnivore (Invertebrates), Piscivore
Diet - Fish [3]  10 %
Diet - Invertibrates [3]  90 %
Forages - Water Surface [3]  80 %
Forages - Underwater [3]  20 %
Clutch Size [1]  1
Clutches / Year [4]  1
Fledging [4]  3 months 5 days
Global Population (2017 est.) [2]  140
Incubation [4]  53 days
Migration [5]  Intraoceanic
Wing Span [1]  35 inches (.88 m)

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Ilhéu da Vila e Costa Adjacente - Ilha de Stª. Maria 119 Portugal    

Important Bird Areas

Name Location  IBA Criteria   Website   Climate   Land Use 
Cooper's Island and Castle Islands Bermuda (to UK) A1, A4ii  

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Cooper's Island and Castle Islands Bermuda  

Prey / Diet

Moroteuthopsis longimana (Giant Warty Squid)[6]

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3Hamish 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
♦ 4Nathan 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
♦ 5Myers, 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 animaldiversity.org
♦ 6Jorrit 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.
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0