Scaly-breasted Thrasher
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The scaly-breasted thrasher (''Allenia fusca'') is a species of
bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
in the family Mimidae. It is found throughout much of the
Lesser Antilles The Lesser Antilles is a group of islands in the Caribbean Sea, forming part of the West Indies in Caribbean, Caribbean region of the Americas. They are distinguished from the larger islands of the Greater Antilles to the west. They form an arc w ...
of the
Caribbean Sea The Caribbean Sea is a sea of the Atlantic Ocean, North Atlantic Ocean in the tropics of the Western Hemisphere, located south of the Gulf of Mexico and southwest of the Sargasso Sea. It is bounded by the Greater Antilles to the north from Cuba ...
.


Taxonomy and systematics

The scaly-breasted thrasher was originally placed in genus ''Margarops'' with the pearly-eyed thrasher (''M. fuscatus'') but is now in the
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
''Allenia''. It has five subspecies: *''A. f. hypenema'' Buden (1993) *''A. f. vincenti'' Kratter & Garrido (1996) *''A. f. atlantica'' Buden (1993) *''A. f. schwartzi'' Buden (1993) *''A. f. fusca''
Müller Müller may refer to: Companies * Müller (company), a German multinational dairy company ** Müller Milk & Ingredients, a UK subsidiary of the German company * Müller (store), a German retail chain * GMD Müller, a Swiss aerial lift manufacturi ...
(1776)


Description

The scaly-breasted thrasher is approximately long and weighs with an average weight of . With its rather short and slightly decurved bill, this thrasher resembles a
thrush Thrush may refer to: Birds * Thrush (bird), any of the birds in the family Turdidae ** List of thrush species * Antthrushes, the Formicariidae family of birds * Dohrn's warbler, or Dohrn's thrush-babbler, a species ''Sylvia dohrni'' in the famil ...
. Adults of the nominate subspecies have a dark gray-brown head and upperparts with a reddish tinge on the rump. Their tail is a darker brownish black and its outer feathers have white tips. The folded wing shows a single white bar. Their chin and throat are whitish with brown streaks. The underparts are whitish and the chest and flanks have bold gray-brown markings that give the eponymous scaly appearance.Cody, M. L. (2020). Scaly-breasted Thrasher (''Allenia fusca''), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.scbthr.01 retrieved July 28, 2021 The other subspecies differ mostly in size and the intensity of their upperparts' color. ''A. f. hypenema'' is the largest and is paler than the nominate. ''A. f. schwartzi'' is mid-sized and has more white on its tail. ''A. f. vincenti'' is the smallest and is darker overall than the nominate. ''A. f. atlantica'' compared to the nominate is more reddish brown above and has less white in the tail.


Distribution and habitat

The subspecies of scaly-breasted thrasher are found thus: *''A. f. hypenema'', northern Lesser Antilles from
Saint Martin Saint Martin may refer to: People * Saint Martin of Tours (c. 316–397), Bishop of Tours, France * Saint Martin of Braga (c. 520–580), archbishop of Bracara Augusta in Gallaecia (now Braga in Portugal) * Pope Martin I (c. 595–655), bishop of R ...
south through
Saba Saba may refer to: Places * Saba (island), an island of the Netherlands located in the Caribbean Sea * Sabá, a municipality in the department of Colón, Honduras * Șaba or Șaba-Târg, the Romanian name for Shabo, a village in Ukraine * Saba, ...
,
Saint Barthélemy Saint Barthélemy, officially the Collectivité territoriale de Saint-Barthélemy, also known as St. Barts (English) or St. Barth (French), is an overseas collectivity of France in the Caribbean. The island lies about southeast of the island ...
,
Antigua Antigua ( ; ), also known as Waladli or Wadadli by the local population, is an island in the Lesser Antilles. It is one of the Leeward Islands in the Caribbean region and the most populous island of the country of Antigua and Barbuda. Antigua ...
,
Saint Kitts and Nevis Saint Kitts and Nevis, officially the Federation of Saint Christopher (St Kitts) and Nevis, is an island country consisting of the two islands of Saint Kitts and Nevis, both located in the West Indies, in the Leeward Islands chain of the Less ...
, and
Montserrat Montserrat ( , ) is a British Overseas Territories, British Overseas Territory in the Caribbean. It is part of the Leeward Islands, the northern portion of the Lesser Antilles chain of the West Indies. Montserrat is about long and wide, wit ...
to
Guadeloupe Guadeloupe is an Overseas departments and regions of France, overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre Island, Basse-Terre, Grande-Terre, Guadeloupe, Grande-Terre, Marie-Galant ...
; possibly extinct on
Sint Eustatius Sint Eustatius, known locally as Statia, is an island in the Caribbean. It is a Caribbean Netherlands, special municipality (officially "Public body (Netherlands), public body") of the Netherlands. The island is in the northern Leeward Islands ...
and
Barbuda Barbuda (; ) is an island and dependency located in the eastern Caribbean forming part of the twin-island state of Antigua and Barbuda as an autonomous entity. Barbuda is located approximately north of Antigua. The only settlements on the i ...
*''A. f. vincenti'', Saint Vincent, and vagrant to the
Grenadines The Grenadines () is a chain of small islands that lie on a line between the larger islands of Saint Vincent and Grenada in the Lesser Antilles. Nine are inhabited and open to the public (or ten, if the offshore island of Young Island is counted ...
*''A. f. atlantica'',
Barbados Barbados, officially the Republic of Barbados, is an island country in the Atlantic Ocean. It is part of the Lesser Antilles of the West Indies and the easternmost island of the Caribbean region. It lies on the boundary of the South American ...
(but is probably extinct) *''A. f. schwartzi'',
Saint Lucia Saint Lucia is an island country of the West Indies in the eastern Caribbean. Part of the Windward Islands of the Lesser Antilles, it is located north/northeast of the island of Saint Vincent (Saint Vincent and the Grenadines), Saint Vincent ...
*''A. f. fusca'',
Dominica Dominica, officially the Commonwealth of Dominica, is an island country in the Caribbean. It is part of the Windward Islands chain in the Lesser Antilles archipelago in the Caribbean Sea. The capital, Roseau, is located on the western side of t ...
,
Grenada Grenada is an island country of the West Indies in the eastern Caribbean Sea. The southernmost of the Windward Islands, Grenada is directly south of Saint Vincent and the Grenadines and about north of Trinidad and Tobago, Trinidad and the So ...
, and
Martinique Martinique ( ; or ; Kalinago language, Kalinago: or ) is an island in the Lesser Antilles of the West Indies, in the eastern Caribbean Sea. It was previously known as Iguanacaera which translates to iguana island in Carib language, Kariʼn ...
The scaly-breasted thrasher primarily inhabits forest and semi-open woodland and is also found around human settlements.


Behavior


Feeding

The scaly-breasted thrasher forages in trees; on different islands it hunts at different levels from low down to high in the canopy. It is omnivorous; its diet includes
arthropod Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metam ...
s, fruits, and berries. It appears to eat a larger percentage of vegetable foods than other thrashers.


Breeding

The scaly-breasted thrasher breeds in May and June. It builds a cup nest in a bush or tree. The clutch size is two or three.


Vocalization

The scaly-breasted thrasher's song is a " ries of varied notes and phrases" similar to that of ''Mimus''
mockingbird Mockingbirds are a group of New World passerine birds from the family (biology), family Mimidae. They are best known for the habit of some species Mimicry, mimicking the songs of other birds and the sounds of insects and amphibians, often loudly ...
s but softer and slower.


Status

The
IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...
has assessed the scaly-breasted thrasher as being of Least Concern. It is fairly common to common through most of its range though rare on Grenada.


References


External links

* {{Taxonbar, from=Q2226247 scaly-breasted thrasher Birds of the Lesser Antilles Birds of Montserrat Endemic birds of the Caribbean Birds of the Greater Antilles scaly-breasted thrasher scaly-breasted thrasher Taxonomy articles created by Polbot