Bare-throated Tiger Heron

Bare-throated Tiger Heron
Bare-throated Tiger Heron
Adult
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Ardeidae
Genus: Tigrisoma
Species: T. mexicanum
Binomial name
Tigrisoma mexicanum
Swainson, 1834

The Bare-throated Tiger Heron, Tigrisoma mexicanum, is a wading bird of the heron family Ardeidae, found from Mexico to northwestern Colombia, with one recorded sighting from the United States in Hidalgo County, Texas.[1] It is 80 cm (28–32") in length and weighs 1200 g.

This large species is found in more open habitats than other Tigrisoma herons, such as river and lake banks. It waits often motionless for suitable prey such as fish, frogs or crabs to come within reach of its long bill.

This is a solitary breeder, not normally found in heron colonies. The nest is a small flattish stick platform in a tree into which 2-3 green-tinged white eggs are laid.

Description

The throat is bare and is greenish-yellow to orange in all plumages. The adult has black crown and light grey sides of head, the sides of the neck and the upperparts otherwise blackish narrowly barred buff. The median stripe down the foreneck is white bordered with black; the remaining underparts are dull cinnamon brown. The juvenile is buff coarsely barred with black, more mottled and vermiculated on wings; the throat, median underparts and belly are whitish.

The flight is heavy, and the call is a hoarse howk-howk-howk. Males also give a booming hrrrowwr! call, especially at sunset. During emission of the call, the beak opens wide and undulations can be seen along the course of the throat from mid-thorax caudally.

  • Juvenile

References

  1. ^ Birding.typepad.com
  • BirdLife International (2008). Tigrisoma mexicanum. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 3 February 2009. Database entry includes justification for why this species is of least concern.
  • Robert S. Ridgely and John A. Gwynne - Birds of Panama with Costa Rica, Nicaragua and Honduras
  • Stiles and Skutch, A guide to the birds of Costa Rica ISBN 978-0-8014-9600-4

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  • heron — /her euhn/, n. any of numerous long legged, long necked, usually long billed birds of the family Ardeidae, including the true herons, egrets, night herons, and bitterns. [1275 1325; ME heiro(u)n, hero(u)n < MF hairon (F héron) < Gmc; cf. OHG… …   Universalium

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