Taxon - Links and literature
Sangster, G. (2022): The taxonomic status of Palearctic and Nearctic populations of northern goshawk Accipiter gentilis (Aves, Accipitridae): New evidence from vocalisations, Vertebrate Zoology 72: 445-456 [as Accipiter atricapillus atricapillus (A. Wilson, 1812)]