The list of New Zealand Birds used by BUBO Listing is based on the 'New Zealand Recognised Bird Names' made available by the Ornithological Society of New Zealand. The OSNZ was founded in 1939 and aims to "foster the study, knowledge and enjoyment of birds".
The checklist currently used is derived from the 3rd edition (1990) of the OSNZ's Checklist of the Birds of New Zealand and the Ross Dependency, Antarctica and includes some subsequent decisions of the Rare Birds Committee of the OSNZ. Whilst a 4th edition was issued in 2010 this has not been kept up to date online and so still has many species, and taxonomy changes, missing. An alternative list with up to date taxonomy is the IOC New Zealand list and we recommend using this instead.