Grey-backed Hawk (Leucopternis occidentalis) - HBW 2, p. 170
French: Buse à dos gris
Spanish: Busardo Dorsigrís
Taxonomy: Leucopternis occidentalis Salvin, 1876, western Ecuador.
Has been considered a race of L. albicollis, to which it is closely allied; forms superspecies with L. albicollis and L. polionota. Monotypic.
Distribution: W Ecuador and adjacent NW Peru. Single record from E Andean slope now questioned by its authors.
- Endangered Enlarge map
Locality Buenaventura Reserve, El Oro Province, Ecuador
Dubi Shapiro 5 February 2009 2 years ago 4.7
Locality Buenaventura Reserve, El Oro Province, Ecuador (Monotypic species)
Dusan M. Brinkhuizen 13 August 2011 3 years ago 4.2
adult in flight
Locality Manabí Province, Ecuador (Monotypic species)
Dusan M. Brinkhuizen 18 February 2008 5 years ago 3.7
Call of immature bird Locality Machalilla National Park, Manabí Province, Ecuador
Peter Boesman 30 December 1993 1 year ago 3.5
Call of adult Locality Piñas, El Oro Province, Ecuador
Peter Boesman 22 December 1993 1 year ago 3.5
call in flight (2x) Locality Jocotoco Foundation’s Canandé Station, Esmeraldas Province, Ecuador
Dusan M. Brinkhuizen 23 September 2009 5 years ago 2.5