Black and gray ant strangler

Black and gray ant strangler
	Black and gray ant strangler, female in the Anavilhanas archipelago
Systematics
Subordination :	Screeching Birds (Tyranni)
Family :	Ant birds (Thamnophilidae)
Subfamily :	Thamnophilinae
Tribe :	Thamnophilini
Genre :	Thamnophilus
Type :	Black and gray ant strangler
Scientific name
	Thamnophilus nigrocinereus
	PL Sclater , 1855

The black and gray ant strangler ( Thamnophilus nigrocinereus ) belongs to the genus Thamnophilus within the ant bird family (Thamnophilidae) .

The species occurs in Brazil , French Guiana , Colombia and Venezuela, as well as in a small part of Bolivia .

The distribution area includes tropical or subtropical , at times flooded evergreen forests, as well as alluvial forest , tree-lined savannah , moist forest edges and river islands in the Llanos up to 400 m height.

The Latin species addition comes from the Latin niger 'black' and the Latin cinereus 'ash-colored' .

The species was previously considered to be specific to the river bank anthracnophilus ( Thamnophilus cryptoleucus ).

Male, illustration by Wolf , 1855

features

The bird is 16-17 cm tall and weighs between 28 and 32 g. The male is black-gray with a black cap and throat, grayish face, paler underside. The wing covers are brown in color and, like the flight feathers, have a white border, the tail feathers have white tips. The female is black-gray on the head including cap, the upper side is dark gray with a reddish-brown tint, wings and tail are brown, the underside is red-brown.

Geographic variation

The following subspecies are recognized:

T. n. Nigrocinereus P. L. Sclater , 1855, nominate form - Amazon in northeastern Brazil
T. n. Cinereoniger pelts , 1868 - Colombia, Venezuela and northwestern Brazil
T. n. Kulczynskii ( Domaniewski & Stolzmann , 1922) - French Guiana and Brazil adjacent
T. n. Tschudii Pelzeln , 1868 - West and Central Brazil
T. n. Huberi Snethlage , 1907 - East and Central Brazil

voice

The call is described as a nasal tone sequence that becomes faster.

Way of life

The food consists mainly of insects and arthropods , which are sought alone or as a pair, sometimes also in mixed hunting communities, preferably at ground to medium tree height. The species likes to bob its tail.

Little is known about the breeding season.

Hazardous situation

The stock is considered to be near threatened .

literature

PL Sclater: Characters of six new species of the genus Thamnophilus. In: Proceedings of the Zoological Society of London . Vol. 23, No. 285, 1855, p. 18. Biodiversity Library

Web links

Commons : Black and gray anthracnite - Collection of images, videos and audio files

Xeno-canto
Oiseaux.net
Birds of the World (videos, photos and sound recordings)
Vireo

Individual evidence

↑ ^a ^b Schwarzgrauer ant shrike , in Avibase - The World Bird Database. Retrieved June 30, 2020.
↑ ^a ^b ^c ^d M. McMullan: Field Guide to the Birds of Colombia Rey Naranjo Editores, 2018, ISBN 978-958-8969-77-0
↑ ^a ^b ^c ^d K. Zimmer and ML Isler: Blackish-gray Antshrike (Thamnophilus nigrocinereus) , version 1.0. In: TS Schulenberg, (Ed.): Birds of the World. 2020, Cornell Lab of Ornithology, Ithaca, NY, USA. Plain-winged Antbird
^ JA Jobling: A Dictionary of Scientific Bird Names. Oxford University Press. 1991, ISBN 0-19-854634-3 .
↑ World Bird Names Antbirds. Retrieved June 30, 2020.
↑ Redlist.Retrieved June 30, 2020.

[avibase-1] Schwarzgrauer ant shrike , in Avibase - The World Bird Database. Retrieved June 30, 2020.

[Miles-2] M. McMullan: Field Guide to the Birds of Colombia Rey Naranjo Editores, 2018, ISBN 978-958-8969-77-0

[Birds-3] K. Zimmer and ML Isler: Blackish-gray Antshrike (Thamnophilus nigrocinereus) , version 1.0. In: TS Schulenberg, (Ed.): Birds of the World. 2020, Cornell Lab of Ornithology, Ithaca, NY, USA. Plain-winged Antbird

[4] JA Jobling: A Dictionary of Scientific Bird Names. Oxford University Press. 1991, ISBN 0-19-854634-3 .

[5] World Bird Names Antbirds. Retrieved June 30, 2020.

[6] Redlist.Retrieved June 30, 2020.