Taxon - Links and literature
Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [as Onychoprion fuscatus luctuosus (Philippi & Landbeck, 1866)]Data retrieved on: 22 April 2021
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [as Onychoprion fuscatus luctuosus]Data retrieved on: 27 April 2013