• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Recommended citation
BirdLife International (2023) Species factsheet: Aythya collaris. Downloaded from http://www.birdlife.org on 25/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/03/2023.