Birds New Zealand (OSNZ) atlas data

The two national atlases of bird distribution compiled by the Ornithological Society of New Zealand (OSNZ; Bull et al. 1985; Robertson et al. 2007, also known as Birds New Zealand).
Field surveys for the atlases were undertaken from September 1969 to December 1979 and from December 1999 to November 2004. The original data from those atlases are stored here as both access and excel datasets. For permission to view and use these data please contact Susan Walker ( and the OSNZ president (

Note that two non-standard aspects of the data complicate comparisons between the two atlas measurement periods: different spatial systems and locations of the sampling units in the atlases (imperial vs metric grid squares), and differences in the levels of effort applied across the nation between and within the two different surveys.


Bull PC, Gaze PD, Robertson CJR 1985. The atlas of bird distribution in New Zealand. Wellington, New Zealand, The Ornithological Society of New Zealand.
Robertson CJR, Hyvönen P, Fraser MJ, Pickard CR 2007. Atlas of bird distribution in New Zealand 1999-2004. Wellington, New Zealand, The Ornithological Society of New Zealand.

Data and Resources

This dataset has no data

Additional Info

Field Value
Author Walker, Susan
Maintainer Gretchen Brownstein
Maintainer Email Gretchen Brownstein
Created Unknown
Date modified Unknown
Language English
Source Identifier
Record created July 11, 2018, Last Updated July 1, 2019