The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
References
- 1. IUCN Red List (October, 2007) http://www.iucnredlist.org
- 2. del Hoyo, J., Elliott, A. and Sargatal, J. (1992) Handbook of the Birds of the World. Vol. 1: Ostrich to Ducks. Lynx Edicions, Barcelona.
- 3. BirdLife International (October, 2007) http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=3899&m=0
- 4. Burnie, D. (2001) Animal. Dorling Kindersley, London.
- 5. Juan Fernández Islands Conservancy. (2003) Biology and Conservation of the Juan Fernández Archipelago Seabird Community. 2003 Season Report. Juan Fernández Islands Conservancy, Washington.
- 6. Brooke, M.L. (1987) Population estimates and breeding biology of the petrels Pterodroma externa and P. longirostris on Isla Alejandro Selkirk, Juan Fernandez Archipelago. The Condor, 89: 581 - 586.
- Araya BM & G Millie. 1991. Guía de campo de las aves de Chile. 4ta ed. Editorial Universitaria, Santiago. 405 p.
- Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
- BirdLife International 2010. Pterodroma externa
- Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
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