Cuban Kite
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The Cuban kite (''Chondrohierax wilsonii'') is a
bird of prey Birds of prey or predatory birds, also known as raptors, are hypercarnivorous bird species that actively hunt and feed on other vertebrates (mainly mammals, reptiles and other smaller birds). In addition to speed and strength, these predat ...
in the family
Accipitridae The Accipitridae is one of the three families within the order Accipitriformes, and is a family of small to large birds with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-s ...
which also includes many other diurnal
raptor Raptor or RAPTOR may refer to: Animals The word "raptor" refers to several groups of bird-like dinosaurs which primarily capture and subdue/kill prey with their talons. * Raptor (bird) or bird of prey, a bird that primarily hunts and feeds on ...
s such as
kite A kite is a tethered heavier-than-air or lighter-than-air craft with wing surfaces that react against the air to create lift and drag forces. A kite consists of wings, tethers and anchors. Kites often have a bridle and tail to guide the fac ...
s,
eagle Eagle is the common name for many large birds of prey of the family Accipitridae. Eagles belong to several groups of genera, some of which are closely related. Most of the 68 species of eagle are from Eurasia and Africa. Outside this area, j ...
s and harriers. It is endemic to
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
. This species is classified as critically endangered by BirdLife International and the IUCN. The current population is estimated 50 to 249 mature birds. In the last 40 years the species has only been observed a handful of times with the latest published sighting in 2010 in
Alejandro de Humboldt National Park Alejandro de Humboldt National Park ( es, Parque Nacional Alejandro de Humboldt) is a national park in the Cuban provinces of Holguín and Guantánamo. It is named after the German scientist Alexander von Humboldt who visited the island in 1800 ...
. The Clements Checklist considered it as subspecies of the
hook-billed kite The hook-billed kite (''Chondrohierax uncinatus''), is a bird of prey in the family Accipitridae, which also includes many other diurnal raptors such as kites, eagles, and harriers. It occurs in the Americas, including the Rio Grande Valley of ...
until its 2022 revision. A
molecular phylogenetics Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
analysis using mitochondrial DNA suggests that it warrants species status having diverged from the mainland lineage approximately 400,000 to 1.5 million years ago. Forest destruction and degradation is the leading cause of population decline, as well as the reduction in prey snail numbers and persecution by local farmers. Its apparently tame nature makes it an easy target for shooters.


Description

The Cuban kite is a little smaller than the hook-billed kite. Males have gray upperparts, black bars on the tail, and the underparts evenly barred grayish and white. Females resemble the Grenada form of hook-billed kite, but the brown barring on the underparts is less rufescent. The bill of Cuban kite is yellowish, in contrast to hook-billed kite's mostly dark bill.


Behavior

Cuban kite feeds on colored tree snails and slugs, which it finds in the forest undergrowth, for which its deeply hooked bill is thought to be adapted for. Taxonomic uncertainties within the genus ''Chondrohierax'' stem from the high degree of variation in bill size and plumage coloration throughout the geographic range of the single recognized species, hook‐billed kite ''Chondrohierax uncinatus''. These uncertainties impede conservation efforts as local populations have declined throughout much of its geographic range from the Neotropics in Central America to northern Argentina and Paraguay, including two island populations on Cuba and Grenada, and it is not known whether barriers to dispersal exist between any of these areas.


References


External links


BirdLife Species FactsheetBEX recipients photograph a Cuban Kite (Chondroierax wilsonii)Global Raptor Information Network species account
Cuban kite Endemic birds of Cuba Critically endangered fauna of North America Cuban kite {{Accipitriformes-stub