Altamira Yellowthroat
Gold crown Yellowthroat ( Geothlypis flavovelata ) ♂
The gold crown Yellowthroat ( Geothlypis flavovelata ) is a small passerine bird in the genus of Common Yellowthroat ( Geothlypis ) in the family of warblers ( Parulidae ). It inhabits the north-east and central -east of Mexico. Together with the willow Yellowthroat ( Geothlypis trichas ), the Bahama Yellowthroat ( Geothlypis rostrata ) and the Belding Yellowthroat ( Geothlypis beldingi ) constitutes the gold crown Yellowthroat a super species. The IUCN lists them since 2000 as "endangered" ( vulnerable ).
Features
Gold crown Yellowthroat reach a body length of 13 centimeters and weigh 10.2 to 11.5 grams. The wing length in males from 5.35 to 5.55 inches, the female 5.1 to 5.45 inches. Adult male golden crown Yellowthroat bear a striking black face mask that runs from ear to ear ceilings and is connected via the front crown. Close behind is adjoined by a broad yellow to golden yellow forehead crown band that is much wider than in other species of the genus Geothlypis, and pulls up to the sides of the neck below the ears and slanted ceilings. The rest of the head plumage is yellow. The top plumage is yellow-olive; the underside plumage bright yellow with yellowish- olive- washed flanks and sides of breast. The bill is blackish; the legs flesh-colored.
In females, the black face mask is missing. The olivgelbe crown plumage is partially covered with washed-out shades of brown. The ear covers and reins are olive to olive gray; the Superciliarstreifen, eye ring and the front crown pale yellow to yellow. The neck is brownish -olive; the sides of the neck are paler and more yellow.
Resources, nutrition and reproduction
Gold crown Yellowthroat are endemic in the northeast and central east of Mexico. They inhabit freshwater marshes and riparian areas of water with one from reeds, usually Cattail, existing vegetation. About the breeding behavior and diet for the most part, nothing is known. Presumably they build as all other Yellowthroat a deep, cup-shaped nest in the lower portions of plants they inhabit and feed mainly on insects.
Conservation status and population numbers
IUCN is the kind since 2000 because of habitat destruction and highly fragmented sites 'at risk' ( vulnerable ) out. Records there are across the states of San Luis Potosi, Veracruz and Tamaulipas. About other sites have not been studied. The largest populations are in Laguna Champayán ( Tamaulipas ), in the northeast of El Naranjo (San Luis Potosí ) and inland from Tecolutla (Veracruz ). Under the Birds BirdLife International, the population size is estimated at 2500-10000 individuals.