Emerald-throated Mangocolibri

from Wikipedia, the free encyclopedia
Emerald-throated Mangocolibri
Emerald throat mango ib

Emerald throat mango ib

Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Hummingbirds (Trochilidae)
Tribe : Polytmini
Genre : Anthracothorax
Type : Emerald-throated Mangocolibri
Scientific name
Anthracothorax viridigula
( Boddaert , 1783)

The emerald- throated mango ( Anthracothorax viridigula ) or emerald- throated mango is a species of bird in the hummingbird family (Trochilidae) that is found in Trinidad , Venezuela , Guyana , Suriname , French Guiana and Brazil . The IUCN assesses the population as Least Concern . The species is considered to be monotypical .

features

The emerald-throated mango tibri reaches a body length of about 10.5 to 12.5 cm, with a weight of 7.5 to 8.5 g for males and 6 g for females. With eggs, females were also weighed at 11 g. The male has a slightly curved black bill. The top shimmers bronze green. The breast is sparkling green and the center of the belly is velvet black. The sides are green to bronze green. The thighs and the back of the underside are white. The central control feathers are dark brown to green, the others shimmer purple. The outermost control feathers have dark blue tips. The female resembles the male on top. The underside is predominantly white with a velvet black central line from chin to belly. The tail is similar to the male, but with white tips. Fledglings resemble females, but the sides of the chin and the underside are chestnut colored.

Behavior and nutrition

The emerald-throated mango gets its nectar from flowering trees. These can be both native and introduced species. The plants he flies to include species from the genera of coral trees , Caesalpinien , Tabebuia , Kordien and Spathodea . Insects such as Hymenoptera , Schnabelkerfen , homoptera and beetles are either captured in flight or heruntergepickt of plant surfaces. Males defend their food territory on mass-flowering trees .

Reproduction

Emerald-throated mango nests exist year-round, but the Guyanas seem to have most of them between January and May. The nest is a small calyx that is attached to a horizontal branch in large trees. This is usually more than 10 meters from the ground. The nests are approx. 30 mm high. The outer radius is approx. 45 mm, the inner radius approx. 35 mm. The eggs weigh about 0.71 g and are about 16.5 × 9.5 mm in size. Incubation period is 14 to 15 days, with the young birds after hatch 24-25 days Nesthocker are. The chicks are black with faint dark gray stripes on the back. After the young animals have left the nest, they stay with the mother for another 3 to 4 weeks. The first brood occurs in the second year of life.

Vocalizations

The emerald-throated mango tibri is considered a rather quiet contemporary. His singing has not yet been described. When it buzzes in front of blossoms, it makes chep..chep .. sounds.

distribution and habitat

Distribution area of ​​the emerald-throated mango colibris

The emerald- throated mango tibri prefers the coastal regions including the mangroves , marsh savannahs and similar open floodplain areas with isolated large trees. He usually gets his food from the treetops. It moves at altitudes from sea level to 500 meters.

migration

The emerald-throated mango is a resident bird in the coastal areas . When the trees are in bloom, however, there may be migration inland.

Etymology and history of research

Emerald throat mango illustrated for Buffon by Edme-Louis Daubenton

The first description of the emerald- throated mango colibris was in 1783 by Pieter Boddaert under the scientific name Trochilus viridigula . The type specimen referred to Colibri à cravate verte by Georges-Louis Leclerc de Buffon in 1780 and Green throated Humming bird by John Latham in 1782. Friedrich Boie introduced the genus Anthracothorax as early as 1831 . 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 "viridigula" is a Latin word formation from "viridis, virere" for "green, to be green" and "gula" for "throat".

literature

Web links

Commons : Emerald- throated Mangocolibri ( Anthracothorax viridigula )  - Collection of images, videos and audio files

Individual evidence

  1. ^ IOC World Bird List Hummingbirds
  2. a b c d e f Karl-Ludwig Schuchmann u. a.
  3. Georges-Louis Leclerc de Buffon, p. 77.
  4. ^ John Latham, p. 55.
  5. Pieter Boddaert, p. 41.
  6. ^ Friedrich Boie, p. 545.
  7. James A. Jobling, p. 49.
  8. James A. Jobling, p. 403.

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.