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Masked Yellowthroat

From Opus

Male Masked Yellowthroat subspecies aequinoctialis. Photo by Steve G  Photo taken: Nariva Swamp, Trinidad, May 2006.
Male Masked Yellowthroat subspecies aequinoctialis.
Photo by Steve G
Photo taken: Nariva Swamp, Trinidad, May 2006.
Geothlypis aequinoctialis

Includes: Chiriqui Yellowthroat; Black-lored Yellowthroat; Southern Yellowthroat

Contents

[edit] Identification

13.2 cm long and weighs 13g. Yellow-green upperparts, bright yellow underparts, black bill. The adult male has a black facemask, bordered above with a grey band. The female lacks the black mask, duller, grey sides to face, yellowish eyering and yellowish stripe from the bill to the eye.

[edit] Distribution

Female Masked Yellowthroat subspecies aequinoctialis. Photo by Dave B Smith  Location: Rahamut Tr., Trinidad, July 2010.
Female Masked Yellowthroat subspecies aequinoctialis.
Photo by Dave B Smith
Location: Rahamut Tr., Trinidad, July 2010.

Central America from Costa Rica south to South America including Trinidad to northern Argentina[1][2]. There are large gaps in the ranges between the forms mentioned as candidates for full species status below.

[edit] Taxonomy

Five subspecies are recognized[1]:

Several of these have been proposed as full species by one or more authorities:
G. chiriquensis as Chiriqui Yellowthroat
G. auricularis including peruviana as Black-lored Yellowthroat
G. velata as Southern Yellowthroat.
G. aequinoctialis would thereafter be the remaining Masked Yellowthroat
A recent study[3] strengthens the case for promoting Chiriqui Yellowthroat to full species because it is closer related to Olive-crowned Yellowthroat than to other members of the current species.

[edit] Habitat

Marshes and other wet areas with dense low vegetation.

[edit] Behaviour

2 white eggs with reddish-brown markings are laid in a lined cup nest low in grass or rank vegetation.

Diet includes insects, including caterpillars.

[edit] Vocalisation


Listen in an external program
Recording by Andrew Whitehouse

[edit] References

  1. Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
  2. Ridgely & Gwynne 1989. Birds of Panama. Princeton Paperbacks. ISBN 0691025126
  3. BirdForum thread discussing Yellowthroat phylogeny
  4. Ridgely and Tudor 2009. Field guide to the songbirds of South America - The Passerines. University of Texas Press. ISBN 978-0-292-71979-8

[edit] External Links

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