Endangered
Flores Hawk-Eagle
Nisaetus floris
Flores Hawk-Eagle is a bird in the family Accipitridae (order Accipitriformes) — Nisaetus floris, recorded as Endangered and tied to Indonesia and Timor-Leste.
Appearance
Adults have dark brown upperparts, a brown tail with six bars, a white patch in the wings that is visible in flight, white underparts, and a white head with fine brownish streaks on the crown (many books erroneously illustrate adults with largely brown heads). The white patches at the upperside of the primaries are a species diagnostic. It has traditionally been treated as a subspecies of the changeable hawk-eagle. At least in part because of confusion over the true adult plumage of the Flores hawk-eagle, that resembles the juvenile of the changeable hawk-eagle.
The total length is usually reported at 75 to 79 cm (30 to 31 in) but may range from 71 to 82 cm (28 to 32 in). Claims it may measure as little as 60 cm (24 in) are probably due to confusion with other hawk-eagle species.
Range and habitat
An Indonesian endemic, the Flores hawk-eagle is distributed in forests of Flores, Lombok and Sumbawa in the Lesser Sundas. It mainly occurs in lowlands, but has been recorded at altitudes as high as 1,600 metres (5,250 ft). The Flores hawk-eagle is known to be reliant on tropical rainforest.
It is an endemic species to the Lesser Sunda Islands in Indonesia.
Habitat labels include lowland.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet and breeding
Even though clearly sedentary and non-migratory as are most tropical raptors, Flores hawk-eagles can disperse widely, mainly after their young disperse from their parent's range. Next to nothing is known of the diet of Flores hawk-eagles.
The presumed diet may consist of birds, lizards, snakes and mammals, but again this may be extrapolated from the diet of other hawk-eagles. Nest activity by the species has been reported in March, April, May and August, with one downed tree reported by locals as containing a nest with a large eaglet in the latter month.
In crisis
A forest dwelling predator, this species is classified as endangered due to habitat loss and persecution.
Flores Hawk-Eagle is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Flores Hawk-Eagle, Wikidata item Q1116302. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
