Brown Tinamou
Encyclopedia
The Brown Tinamou is a dumpy, brownish ground bird found in humid lowland and montane forest in tropical and subtropical South America
.
s. Unlike other Ratites, Tinamous can fly, although in general, they are not strong fliers. All ratites evolved from prehistoric flying birds, and Tinamous are the closest living relative of these birds.
being distributed as follows:
Additionally, there are records from north Mato Grosso
in Brazil
, but it remains unclear which subspecies
is involved. Most subspecies
occur in highlands, but hypochraceus, griseiventris, and the southern populations of the nominate taxon
occur in lowlands. It is uncommon to rare in most of its range, but commoner in southeastern Brazil
, where it is the most frequently encountered member of its genus
.
or Greek
words. kruptos meaning covered or hidden, oura meaning tail, and ellus meaning diminutive. Therefore Crypturellus means small hidden tail.
, but unrelated as it, along with other tinamous, belongs in the Paleognathae
. It is approximately 25 to 30 cm (9.8 to 11.8 in) in length and it weighs about 350 to 550 g (12.3 to 19.4 oz). Depending on the subspecies
involved, the upperparts vary from dark sooty-brown to bright chestnut and the underparts, which usually are paler than the upperparts, vary from chestnut to light ochraceous. The subspecies
griseiventris is unique in having pale buff-grey underparts. All subspecies
can be separated from the superficially similar Little Tinamou
by the greyish (rather than whitish) throat. Females are typically larger and more rufescent than the males.
, it is a shy, ground-dwelling species, which usually is encountered singly or in pairs. It feeds on fruits, insects, and seeds. The female lays 4-5 deep pink to dark glossy brown eggs on the ground; typically in a small depression at the base of a tree. Its song consists of loud, high-pitches whistles, but exact structure and timbre vary over its range.
, Colombia
, Ecuador
, Peru
, northern and southern Brazil
, extreme northeastern Argentina
, eastern Bolivia
, and eastern Paraguay
. They may also be in Uruguay
.
They live in tropical and sub-tropical moist lowland and montane
forests, preferring elevations between 1300 to 2900 m (4,265.1 to 9,514.4 ft).
, with an occurrence range of 1700000 km² (656,373.7 sq mi).
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...
.
Taxonomy
All tinamou are from the family Tinamidae, and in the larger scheme are also RatiteRatite
A ratite is any of a diverse group of large, flightless birds of Gondwanan origin, most of them now extinct. Unlike other flightless birds, the ratites have no keel on their sternum—hence the name from the Latin ratis...
s. Unlike other Ratites, Tinamous can fly, although in general, they are not strong fliers. All ratites evolved from prehistoric flying birds, and Tinamous are the closest living relative of these birds.
Subspecies
Its distribution is highly disjunct with the subspeciesSubspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
being distributed as follows:
- C. o. obsoletus, the nominate race, occurs in the Atlantic forest in southeastern BrazilBrazilBrazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, eastern ParaguayParaguayParaguay , officially the Republic of Paraguay , is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the...
and Misiones, ArgentinaArgentinaArgentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
. - C. o. griseiventris occurs throghout the valley of Rio Tapajós, BrazilBrazilBrazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
; southwestern ParáParáPará is a state in the north of Brazil. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, Amazonas and Roraima. To the northwest it also borders Guyana and Suriname, and to the northeast it borders the Atlantic Ocean. The capital is Belém.Pará is the most populous state...
, southeastern Amazonas, and central Mato GrossoMato GrossoMato Grosso is one of the states of Brazil, the third largest in area, located in the western part of the country.Neighboring states are Rondônia, Amazonas, Pará, Tocantins, Goiás and Mato Grosso do Sul. It also borders Bolivia to the southwest...
. - C. o. hypochraceus occurs in upper Rio Madeira valley in central RondôniaRondôniaRondônia is a state in Brazil, located in the north-western part of the country. To the west is a short border with the state of Acre, to the north is the state of Amazonas, in the east is Mato Grosso, and in the south is Bolivia. Its capital is Porto Velho. The state was named after Candido Rondon...
, BrazilBrazilBrazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
. - C. o. punensis occurs in the YungasYungasThe Yungas is a stretch of forest along the eastern slope of the Andes Mountains from southeastern Peru through central Bolivia. It is a transitional zone between the Andean highlands and the eastern forests. Like the surrounding areas, it has characteristics of the Neotropic ecozone...
of central BoliviaBoliviaBolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...
and extreme southeastern PeruPeruPeru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
. - C. o. traylori, Traylor's Tinamou, occurs in the Marcapata Valley of central CuscoCusco RegionCusco is a region in Peru. It is bordered by the Ucayali Region on the north; the Madre de Dios and Puno regions on the east; the Arequipa Region on the south; and the Apurímac, Ayacucho and Junín regions on the west...
, southeastern PeruPeruPeru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
. - C. o. ochraceiventris occurs along the east Andean slopes in central PeruPeruPeru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
; HuanucoHuánuco RegionHuánuco is a region in central Peru. It is bordered by the La Libertad, San Martín, Loreto and Ucayali regions on the north; the Ucayali Region on the east; the Pasco Region on the south; and the Lima and Ancash regions on the west. Its capital is the city of Huánuco.Huánuco has a rough topography...
, PascoPasco RegionPasco is a region in central Peru. Its capital is Cerro de Pasco.-Political division:The region is divided into 3 provinces , which are composed of 28 districts .-Provinces:...
, JunínJunín RegionJunín is a region in the central highlands and westernmost Amazonia of Peru. Its capital is Huancayo.-Geography:The region has a very heterogeneous topography. The western cordillera located near the border with the Lima Region, has snowy and ice covered peaks. On the east, there are high glacier...
, northern AyacuchoAyacucho RegionAyacucho is a region of Peru, located in the south-central Andes of the country. Its capital is the city of Ayacucho. The region was one of the hardest hit by terrorism during the 1980s during the guerrilla war waged by Shining Path known as the internal conflict in Peru.A referendum was held on...
, and CuscoCusco RegionCusco is a region in Peru. It is bordered by the Ucayali Region on the north; the Madre de Dios and Puno regions on the east; the Arequipa Region on the south; and the Apurímac, Ayacucho and Junín regions on the west...
. - C. o. castaneus occurs east of the AndesAndesThe Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...
in northern PeruPeruPeru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
, EcuadorEcuadorEcuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...
, and ColombiaColombiaColombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...
. - C. o. knoxi occurs in sub-tropical northwestern VenezuelaVenezuelaVenezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...
. - C. o. cerviniventris occurs in northern VenezuelaVenezuelaVenezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...
.
Additionally, there are records from north Mato Grosso
Mato Grosso
Mato Grosso is one of the states of Brazil, the third largest in area, located in the western part of the country.Neighboring states are Rondônia, Amazonas, Pará, Tocantins, Goiás and Mato Grosso do Sul. It also borders Bolivia to the southwest...
in Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, but it remains unclear which subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
is involved. Most subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
occur in highlands, but hypochraceus, griseiventris, and the southern populations of the nominate taxon
Taxon
|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...
occur in lowlands. It is uncommon to rare in most of its range, but commoner in southeastern Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, where it is the most frequently encountered member of its genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
.
Etymology
Crypturellus is formed from three LatinLatin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...
or Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...
words. kruptos meaning covered or hidden, oura meaning tail, and ellus meaning diminutive. Therefore Crypturellus means small hidden tail.
Description
The Brown Tinamou is superficially similar to a quailQuail
Quail is a collective name for several genera of mid-sized birds generally considered in the order Galliformes. Old World quail are found in the family Phasianidae, while New World quail are found in the family Odontophoridae...
, but unrelated as it, along with other tinamous, belongs in the Paleognathae
Paleognathae
The Palaeognathae or paleognaths are one of the two living superorders of birds. The other living superorder is Neognathae. Together these two clades form the subclass Neornithes....
. It is approximately 25 to 30 cm (9.8 to 11.8 in) in length and it weighs about 350 to 550 g (12.3 to 19.4 oz). Depending on the subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
involved, the upperparts vary from dark sooty-brown to bright chestnut and the underparts, which usually are paler than the upperparts, vary from chestnut to light ochraceous. The subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
griseiventris is unique in having pale buff-grey underparts. All subspecies
Subspecies
Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...
can be separated from the superficially similar Little Tinamou
Little Tinamou
The Little Tinamou, Crypturellus soui, is found in Central America and South America.-Etymology:Crypturellus is formed from three Latin or Greek words. kruptos meaning covered or hidden, oura meaning tail, and ellus meaning diminutive...
by the greyish (rather than whitish) throat. Females are typically larger and more rufescent than the males.
Behavior
As other tinamous of its genusGenus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
, it is a shy, ground-dwelling species, which usually is encountered singly or in pairs. It feeds on fruits, insects, and seeds. The female lays 4-5 deep pink to dark glossy brown eggs on the ground; typically in a small depression at the base of a tree. Its song consists of loud, high-pitches whistles, but exact structure and timbre vary over its range.
Range and habitat
The Brown Tinamou is located in northern VenezuelaVenezuela
Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...
, Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...
, Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...
, Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
, northern and southern Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, extreme northeastern Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
, eastern Bolivia
Bolivia
Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...
, and eastern Paraguay
Paraguay
Paraguay , officially the Republic of Paraguay , is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the...
. They may also be in Uruguay
Uruguay
Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...
.
They live in tropical and sub-tropical moist lowland and montane
Montane
In biogeography, montane is the highland area located below the subalpine zone. Montane regions generally have cooler temperatures and often have higher rainfall than the adjacent lowland regions, and are frequently home to distinct communities of plants and animals.The term "montane" means "of the...
forests, preferring elevations between 1300 to 2900 m (4,265.1 to 9,514.4 ft).
Conservation
The IUCN classifies the Brown Tinamou as Least ConcernLeast Concern
Least Concern is an IUCN category assigned to extant taxon or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, Near Threatened, or Conservation Dependent...
, with an occurrence range of 1700000 km² (656,373.7 sq mi).
External links
- FAUNA Paraguay A complete online guide to Paraguayan fauna
- BirdLife Species Factsheet
- IUCN Red List
- Brown Tinamou videos, photos & sounds on the Internet Bird Collection