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Estimates of Southern Rockhopper and Macaroni penguin numbers at the Ildefonso and Diego Ramirez Archipelagos, Chile, using Quadrat and distance-sampling techniques Waterbirds, 2007 (Ref: 13064)
Authors:
Kirkwood R.Lawton K.Moreno C.Valencia J.Schlatter R.Robertson G.
Category 1: Peer-reviewed literature

Populations of Southern Rockhopper ( Euduptes chrysocome chrysocome … ) and Macaroni ( E. chrysolophus … ) Penguins at key breeding sites in the Southern Hemisphere have declined substantially in the past 50 years, but … their statuses at important breeding sites in southern Chile are poorly known.

An estimate of population sizes of burrowing seabirds at the Diego Ramirez archipelago, Chile, using distance sampling and burrow-scoping. Polar Biology, 2005 (Ref: 12127)
Authors:
Lawton K.Robertson G.Kirkwood R.Valencia J.Schlatter R.Smith D.
Category 1: Peer-reviewed literature

The Diego Ramirez Islands lie 60 nautical miles … southwest of Cape Horn and are the breeding site for … three species of burrowing seabirds: blue petrels … (Halobaena caerulea), common diving petrels (Pelecanoides … urinatrix) and sooty shearwater (Puffinus griseus).

An estimate of population sizes of burrowing petrels at the Diego Ramirez Archipelago using distance sampling and burrow-scoping. Third International Albatross and Petrel Conference, 23-27 August 2004, Montevideo, Uruguay., 2004 (Ref: 11662)
Authors:
Lawton K.Kirkwood K.Valencia J.Robertson G.Schlatter R.
Category 3: Verbal presentation

Three species of burrowing seabirds nest on the Diego Ramirez Islands (60 nautical miles south-west of Cape Horn): blue petrels (Halobaena caerulea), common diving petrels (Pelecanoides urinatrix) and sooty shearwater (Puffinus griseus).

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