Black-faced Grassquit
Encyclopedia
The Black-faced Grassquit, Tiaris bicolor, is a small bird
formerly placed with the Emberizidae
. It is now recognized as a tanager
closely related to Darwins finches. It breeds in the West Indies except Cuba
, on Tobago
but not Trinidad
, and along the northern coasts of Colombia
and Venezuela
.
This is a common bird in long grass or scrub in open or semi-open areas, including roadsides and rice
fields. It makes a domed grass nest, lined with finer grasses, and placed low in a bush or on a bank. The typical clutch is two or three whitish eggs blotched with reddish brown. Both sexes build the nest and feed the young.
Adult Black-faced Grassquits are 10.2 cm long and weigh 10.5 g. They have a short conical black bill with an obvious curve to the culmen. The male is olive green above, paler grey-olive below, and has a black head and breast. Female and immature birds have dull olive-grey upperparts and head, and paler grey underparts becoming whiter on the belly.
Males on the South America
n mainland have more extensively black underparts, shading to a grey belly.
The Black-faced Grassquit feeds mainly on seeds, especially of grasses and weeds. It is often found in small groups, but is solitary at evening roosts.
The male has a display flight in which he flies for short distances, vibrating his wings and giving a buzzing dik-zeezeezee call.
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
formerly placed with the Emberizidae
Emberizidae
The Emberizidae are a large family of passerine birds. They are seed-eating birds with a distinctively shaped bill.In Europe, most species are called buntings. In North America, most of the species in this family are known as sparrows, but these birds are not closely related to the sparrows, the...
. It is now recognized as a tanager
Tanager
The tanagers comprise the bird family Thraupidae, in the order Passeriformes. The family has an American distribution.There were traditionally about 240 species of tanagers, but the taxonomic treatment of this family's members is currently in a state of flux...
closely related to Darwins finches. It breeds in the West Indies except Cuba
Cuba
The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...
, on Tobago
Tobago
Tobago is the smaller of the two main islands that make up the Republic of Trinidad and Tobago. It is located in the southern Caribbean, northeast of the island of Trinidad and southeast of Grenada. The island lies outside the hurricane belt...
but not Trinidad
Trinidad
Trinidad is the larger and more populous of the two major islands and numerous landforms which make up the island nation of Trinidad and Tobago. It is the southernmost island in the Caribbean and lies just off the northeastern coast of Venezuela. With an area of it is also the fifth largest in...
, and along the northern coasts of 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...
and Venezuela
Venezuela
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...
.
This is a common bird in long grass or scrub in open or semi-open areas, including roadsides and rice
Rice
Rice is the seed of the monocot plants Oryza sativa or Oryza glaberrima . As a cereal grain, it is the most important staple food for a large part of the world's human population, especially in East Asia, Southeast Asia, South Asia, the Middle East, and the West Indies...
fields. It makes a domed grass nest, lined with finer grasses, and placed low in a bush or on a bank. The typical clutch is two or three whitish eggs blotched with reddish brown. Both sexes build the nest and feed the young.
Adult Black-faced Grassquits are 10.2 cm long and weigh 10.5 g. They have a short conical black bill with an obvious curve to the culmen. The male is olive green above, paler grey-olive below, and has a black head and breast. Female and immature birds have dull olive-grey upperparts and head, and paler grey underparts becoming whiter on the belly.
Males on the South America
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...
n mainland have more extensively black underparts, shading to a grey belly.
The Black-faced Grassquit feeds mainly on seeds, especially of grasses and weeds. It is often found in small groups, but is solitary at evening roosts.
The male has a display flight in which he flies for short distances, vibrating his wings and giving a buzzing dik-zeezeezee call.
External links
- Black-faced Grassquit videos, photos & sounds on the Internet Bird Collection