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Mexican Duck

From Opus

Male Photo © by bobsofpaSan Pedro Riparian National Conservation Area, Arizona, USA, 6 May 2005
Male
Photo © by bobsofpa
San Pedro Riparian National Conservation Area, Arizona, USA, 6 May 2005
Anas diazi

Contents

[edit] Identification

  • Streaked brown body, darker than Mallard
  • Plain head
  • Blackish tail and tail-coverts
  • Greenish-blue speculum with narrow white edges (less distinct than in Mallard)
  • Uniformly yellowish bill

Sexes similar.

[edit] Distribution

Female Photo © by bobsofpaSan Pedro Riparian National Conservation Area, Arizona, USA, 2 May 2010
Female
Photo © by bobsofpa
San Pedro Riparian National Conservation Area, Arizona, USA, 2 May 2010

Found in southeastern Arizona, southern New Mexico and western Texas south to central Mexico.
Still common in its range but threatened by hybridization with Mallard, which is spreading south in the USA.

[edit] Taxonomy

This is a monotypic species1.
Formerly considered conspecific with Mallard and also sometimes considered conspecific with Mottled Duck.

[edit] Habitat

From small ponds on farms and in town parks up to the largest reservoirs, and also swamps and marshes.

[edit] Behaviour

[edit] Diet

Diet includes insects, seed, roots, grain either whilst dabbling or on land.

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

[edit] External Links


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