
TY  - JOUR
A1  - Wiltshire, Alan J. 
A1  - Scofield, R. Paul 
T1  - Population Estimate of Breeding Northern Giant Petrels <emph type="2">Macronectes halli</emph> on Campbell Island, New Zealand
JF  - Emu
JO  - EMU
Y1  - 2000
VL  - 100
IS  - 3
SP  - 186
EP  - 191
KW  - 
UR  - https://doi.org/10.1071/MU9858 
N2  - An extensive survey of the breeding population of the Northern Giant Petrel Macronectes halli on Campbell Island was conducted during the 1996&#8212;97 season. The number of breeding pairs was estimated to be at least 234. Globally, Northern Giant Petrel populations are thought to be increasing at some locations and decreasing at others. Comparison of the 1996&#8212;97 Campbell Island population estimate with historic records is unreliable as past surveys were often limited in the areas searched or were based on anecdotal evidence of breeding occurences. Northern Giant Petrels often move their nest site from year to year and so representative surveys of a restricted area are not appropriate for this species. Long-term monitoring of the whole population is required in order to detect true population trends. 
ER  -

