WoRMS taxon details
basis of record
Fry, C. H.; Keith, S.; Urban, E. K. (1988). The Birds of Africa, Volume III. <em>Academic Press, London.</em> [details]
additional source
Neave, Sheffield Airey. (1939-1996). Nomenclator Zoologicus vol. 1-10 Online. <em>[Online Nomenclator Zoologicus at Checklistbank. Ubio link has gone].</em> , available online at https://www.checklistbank.org/dataset/126539/about [details]
From other sources
Description Size: medium to giant size. Plumage: hard in texture; markedly sexually dimorphic; tail long; inter-ramal feathers not overlapping sides of mandibular rami. Other characters: bill stout; prey on large invertebrates; hunt from a perch; solitary. [details]
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