Variable hawk
Geranoaetus polyosoma
The variable hawk is a polymorphic species of bird of prey in the family Accipitridae. It is widespread and often common in open habitats in western and southern South America, including the Falkland Islands. Its taxonomy is disputed, with some splitting it into the widespread red-backed hawk and the Puna hawk or Gurney's hawk of the central and north Andean highlands, but the differences between the two are unclear.