Dominican Mangocolibri

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Dominican Mangocolibri
Dominican Mangocolibri ♂

Dominican Mangocolibri ♂

Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Hummingbirds (Trochilidae)
Tribe : Polytmini
Genre : Anthracothorax
Type : Dominican Mangocolibri
Scientific name
Anthracothorax dominicus
( Linnaeus , 1766)

The Dominican Mangokolibri ( Anthracothorax dominicus ) or Dominican Mango is a species of bird from the hummingbird family (Trochilidae) that occurs on Hispaniola , Puerto Rico , the Virgin Islands and their immediately adjacent islands. The IUCN assesses the population as Least Concern .

features

Dominican Mangocolibri ♀

The Dominican Mangocolibri reaches a body length of about 11 to 12.5 cm, with a weight of 7 to 8.2 g for males and 4 to 7 g for females. The male has a slightly curved black bill. The top is sparkling bronze green. The chin and throat are metallic green, the rest of the underside is velvet black. The tail is purple with blue-black tips. The female's beak is similar to that of the male. The top shimmers green. There is a small white spot behind the eye. The underside is gray and light white on the belly. Fledglings resemble females in appearance but have a velvety black center line. They do not have a white spot behind the eye.

Behavior and nutrition

The Dominican Mangokolibri gets its nectar from flowers of the genera Kordien , Inga , Melocactus , Bauhinien , morning glories , hibiscus , coral trees , Sabinea etc. pp These include insects that it catches in flight for its food. He collects spiders from the surface of leaves and trunks. It looks for its food from the lower middle strata to the tree tops at heights between four and twenty meters above the ground. Occasionally they are looking for food at a height of two meters. The males defend nectar rich territories .

Reproduction

The breeding season is from December to August, possibly all year round. The nest is a compact chalice that is lined with soft plant fibers and is often sheathed with lichen and cobwebs. It is usually built in trees, scrub and on cacti one to ten meters above the ground. A study in the southwest of the Dominican Republic found 49 nests in desert scrub at an average height of 3.1 meters d. H. in a range between one and seven meters above the ground. A clutch consists of two eggs. The chicks are black with two gray stripes on the back. There is only one brood per year.

Vocalizations

The Dominican Mangokolibri is considered a rather quiet contemporary. A song has not yet been described. The sounds he makes include repeated short tsip and high-pitched liquid chattering tones.

distribution and habitat

Distribution area of ​​the Dominican mango colibris

The Dominican Mangokolibri prefers clearings, gardens, shady coffee plantations, secondary vegetation and dry bushy slopes along the coast at altitudes from sea level to 2600 meters. Most of the time, however, it is under 1500 meters, often in disturbed forest areas and in pine forests over 1100 meters. It is seldom seen in semi-arid regions.

migration

The Dominican Mangocolibri is considered a resident bird .

Subspecies

There are two known subspecies:

  • Anthracothorax dominicus dominicus ( Linnaeus , 1766) occurs on Hispaniola and the nearby islands.
  • Anthracothorax dominicus aurulentus ( Audebert & Vieillot , 1801) is common in Puerto Rico, the Virgin Islands and the neighboring islands. In the male subspecies, not the entire underside below the throat is blue-black. This color only extends to the middle of the abdomen, with the flanks green and the middle rear area up to the cloaca being brownish gray. The central control springs are bronze green and not blackish blue. The female has a dull brownish gray on the outer tail area. which turns into darker and white tips. The subspecies is also a bit smaller. Occasionally the subspecies is considered as a separate species e.g. B. in the Handbook of the Birds of the World .

Etymology and history of research

The Dominican mango colibris was first described in 1766 by Carl von Linné under the scientific name Trochilus dominicus . The type specimen came from Dominica . Friedrich Boie introduced the genus Anthracothorax as early as 1831 . Only later was the Dominican Mangocolibri assigned to the genus. This name is derived from the Greek "anthrax, anthrakos ανθραξ, ανθρακος " for "coal, precious being" and "thōrax, thōrakos θωραξ, θωρακος " for "breast". The species name refers to Dominica. "Aurulentus" is of Latin origin and means "of golden color" and is derived from "aurum" for "gold".

literature

Web links

Commons : Dominikanermangokolibri ( Anthracothorax dominicus )  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d e f g Karl-Ludwig Schuchmann u. a.
  2. ^ IOC World Bird List Hummingbirds
  3. ↑ a b c Carl von Linné, p. 191.
  4. ^ Jean Baptiste Audebert et al. a. (Edition 1), pp. 29–31, plates 12 & 13.
  5. ^ Friedrich Boie, p. 545.
  6. ↑ James A. Jobling, p. 49.
  7. ↑ James A. Jobling, p. 62.

Remarks

  1. ↑ Boie arranged the genus the Jamaica Mango Hummingbird ( Anthracothorax mango ( Linnaeus , 1758)), the blue star Antilles Kolibri ( Eulampis holosericeus ( Linnaeus , 1758)), Purple Kehl Kolibri ( Eulampis jugularis ( Linnaeus , 1766)) (Syn: Trochilus violaceus ), Smaragdkehl- Mangokolibri ( Anthracothorax viridigula ( Boddaert , 1783)) (Syn: Trochilus gramineus ) belonging to the genus.