The abundance and distribution of Australian birds is in constant flux, so BirdLife Australia has a process for nominating changes to the IUCN Red List status as needed.
The process is as follows:
1. An individual or group expresses their concern about a taxon to the BirdLife Australia Threatened Species Committee (TSC@birdlife.org.au)
2. The chair of the TSC works with the nominator to gather as much information as possible to justify a change - the format depends on the material available - and distributes among TSC members for discussion. For difficult or contentious cases the TSC has developed a state-of-the-art approach for eliciting information from experts to get as close as possible to the truth.
3. The TSC makes a recommendation on status that is considered by the Research and Conservation Committee. It is also made available to BirdLife International which manages the IUCN Red List on birds and has two representatives on the committee. The RACC recommendation is considered by the BirdLife Australia board. The Australian status is changed if the recommendation is endorsed by the board.