Black-billed Streamertail

Black -billed Jamaikasylphe ( Trochilus scitulus )

The Black -billed Jamaikasylphe ( Trochilus scitulus ), also called Black-billed Pennant tail, is a hummingbird found only in the east of Jamaica. The species was formerly considered a subspecies of the pennant tail ( Trochilus polytmus ).

Features

The pennant tail and black beak Jamaikasylphe are an example of allopatric speciation in Jamaica. The species of hummingbird genus Trochilus agree on many features in habit. The beaks but are colored differently. Black -billed Jamaikasylphen are in the 20-24 mm long black beak, to recognize the dark long tail feathers and the green, black and blue iridescent plumage. The long -ranging, black cock is - as with the pennant tail or the Schwarzschwanzsylphe - to 17 inches long. The abdomen is dark green. Your weight is five grams. The female is smaller. Black -billed Jamaikasylphe threaten to be " Ziit - Call ".

Dissemination

The species lives in coastal areas and mountainous regions in the east of Jamaica. The distribution area is bordered in the northeast of the Rio Grande and John Crow Mountains and the following in the south of Morant River.

Food

The diet of the Black -billed Jamaikasylphe consists mainly of nectar and pollen. The nectar is taken from the flowers in flight. In addition, insects are eaten, which ensures an adequate supply of protein.

Reproduction

The breeding season is from October to May The nests are reaches For a height of 3 to 4 meters. Because of the large amounts of precipitation in the distribution area, there is a nest of coarser material, among other lichens and root pieces. This can drain the water better in heavy rain. The female lays two eggs oval on average. The incubation period is 18 to 20 days.

Enemies

In addition to the man who destroyed the habitat of the hummingbirds and processed parts of this bird to jewelry, the type also has natural predators such as snakes, cats and birds of prey.

Endangering

The total population is not currently considered threatened. In the Red List of the World Conservation Union, the Black -billed Jamaikasylphe is therefore in the category " LC" ( least concern - not endangered) out.