Overview

Distribution

Range

N Colombia to w Venezuela (Maracaibo basin).

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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
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Source: IUCN

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population
The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure).

Population Trend
Increasing
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Wikipedia

Gartered Trogon

The Gartered Trogon (Trogon caligatus), also known as the Northern Violaceous Trogon, is a near passerine bird in the trogon family, Trogonidae. It is found in forests in east-central Mexico, south through Central America, to north-western South America (west or north of the Andes in Colombia, Ecuador and Venezuela).[3] It was formerly treated as a subspecies of the otherwise exclusively South American Violaceous Trogon (T. violaceus).[2][4]

Behavior[edit]

It nests in a wasp, ant or termite nest or a hole in a rotten tree, with a typical clutch of two or three white eggs.

Gartered Trogons feed on insects and small fruit, and their broad bills and weak legs reflect their diet and arboreal habits. Although their flight is fast, they are reluctant to fly any distance. They typically perch upright and motionless.

Description[edit]

Most trogons have distinctive male and female plumages, with soft, often colourful, feathers. The Gartered Trogon is a relatively small species at about 23 cm (9.1 in) in length.[5] The head and upper breast of the male are blue and the back is green, becoming bluer on the rump. A faint white line separates the breast from the orange-yellow underparts. The undertail is white with black barring, and the wings are black, vermiculated with white. The complete eye-ring is yellow.[5] The female Violaceous Trogon resembles the male, but has a dark grey back, head and breast, and an incomplete white eye-ring.[5]

The shade of the blue of the head in the male differs between the Violaceous Trogon and the Gartered Trogon, but (disregarding their separate distributions) the voice is the main distinction between the two.[5] The Gartered has a slurred whistled cuh-cuh-cuh, and Violaceous has a soft cow cow, cow.

References[edit]

  1. ^ BirdLife International (2012). "Trogon caligatus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ a b Trogon caligatus on Avibase
  3. ^ Restall, R. L., Rodner, C., & Lentino, M. (2006). Birds of Northern South America. Christopher Helm. ISBN 0-7136-7243-9 (vol. 1). ISBN 0-7136-7242-0 (vol. 2).
  4. ^ South American Classification Committee (2008). Recognize Trogon caligatus as a separate species from Trogon violaceus
  5. ^ a b c d Ridgely, R. S., & Greenfield, P. J. (2001). The Birds of Ecuador – Field Guide. Cornell University Press. ISBN 978-0801487217.
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