Ridgway's hawk

Ridgway's hawk
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Falconiformes
(or Accipitriformes, q.v.)
Family: Accipitridae
Genus: Buteo
Species: B. ridgwayi
Binomial name
Buteo ridgwayi
(Cory, 1883)
Synonyms

Rupornis ridgwayi

Ridgway's hawk (Buteo ridgwayi) is a bird of prey in the family Accipitridae, native to the island of Hispaniola. Despite its common name, this bird is a Buteo buzzard and not a true Accipiter hawk. It was named after the American ornithologist Robert Ridgway. It is a brownish-grey bird with barred tail and underparts. It feeds mainly on reptiles, but also consumes small birds and mammals. It nests high in a tree in spring. Populations of this bird have been declining because of habitat destruction and human persecution, and it is now only found in the Los Haitises National Park in the Dominican Republic and is regarded as "critically endangered".

Description

This is a medium-sized, compact hawk, 36–41 cm long. The adult has brown-grey upperparts, greyish barred underparts with a reddish-brown wash, rufous-tinged thighs and a black-and-white barred tail. The male is greyer than the female. The legs and base of bill are yellow.

This bird feeds on small mammals, birds, lizards and snakes. It nests in the crowns of tall trees, with nest-building in February and March and egg-laying in March and April.

Distribution

The Ridgway's hawk's original breeding range included Haiti and the Dominican Republic (which make up the island of Hispaniola) and some of the adjacent isles and keys. As of 2006, its only known population resides within Los Haitises National Park in the northeastern Dominican Republic, which is mostly covered by wet limestone forest.

Status

This bird is critically endangered due to clearance of its forest habitat and persecution by local farmers, who do not like that the species preys upon their domestic fowl. People have claimed they do not feed on chickens, but the Ridgway's Hawk has a highly varied prey base, even though reptiles may comprise up to 90% of its diet. It has an estimated population of 80–120 pairs,[2] making it, along with the bay-breasted cuckoo (Coccyzus rufigularis), the most threatened bird of Hispaniola.

This bird is named after the ornithologist Robert Ridgway.

References

  1. ↑ BirdLife International (2013). "Buteo ridgwayi". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
  2. ↑ "Groups unite at last refuge for Ridgway's hawk". BirdLife International. 2006-01-11. Retrieved 2007-09-23.
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