Family Hawks, Eagles (Accipitridae)

Least Concern

Black-collared Hawk (Busarellus nigricollis)


French: Buse à tête blanche German: Fischbussard Spanish: Busardo colorado

Falco nigricollis


, 1790,



Two subspecies recognized.

Subspecies and Distribution
  • B. n. nigricollis (Latham, 1790) – C Mexico (from S Sinaloa and S Veracruz) S through Central America to South America, W to NE Ecuador and E Peru, E to the Guianas#R, and S to Bolivia and S Brazil.
  • B. n. leucocephalus (Vieillot, 1816) – E Bolivia (Santa Cruz), Paraguay, N Argentina (S to Salta, Santa Fe and Entre Ríos) and N Uruguay#R.
  • Descriptive notes

    45·5–58 cm; male 391–990 g, female 580–1070 g; wingspan 115–143 cm. Broad wings and fairly short tail; small head and short neck white to buff... read more


    Considered to be generally quiet, except when breeding: a pig-like squeal that is sometimes... read more


    Tropical zone, near fresh or brackish water, including mangroves, ricefields, dykes, marshes and... read more

    Food and feeding

    Mostly fish (e.g. Hoplias malabaricus, Serrasalmus spilopleura, Hoplerythrinus unitaeniatus), but also some... read more


    Very poorly known. Lays in Jun–Dec in Surinam, Apr in Guyana, May in SW Brazil, Aug/Sept in Paraguay, and Jul–Sept in N... read more


    Mainly sedentary, but may move nomadically in response to changing water levels; most common along... read more

    Status and conservation

    Not globally threatened (Least Concern). CITES II. Quite common in appropriate habitat in many parts of extensive range, but presence patchy in many areas, e.g. in S Brazil... read more

    Recommended citation

    Bierregaard, R.O., Jr, Kirwan, G.M. & Boesman, P. (2020). Black-collared Hawk (Busarellus nigricollis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 21 February 2020).