Join for FREE
It only takes a minute!
Zeiss - Always on the lookout for something special – Shop now

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Personal tools
Main Categories

Bronzed Cowbird

From Opus

Photo by GagaSan Ygnacio, Texas, USA, May 2004
Photo by Gaga
San Ygnacio, Texas, USA, May 2004
Molothrus aeneus

Includes: Bronze-brown Cowbird


[edit] Identification


  • Iridescent greeny bronze, black plumage
  • Red iris

Female dull grey brown

[edit] Distribution

Female (Western)Photo by bobsofpaCottonwood Campground, Big Bend National Park, Texas, USA, April 2010
Female (Western)
Photo by bobsofpa
Cottonwood Campground, Big Bend National Park, Texas, USA, April 2010

Southwestern California, southern New Mexico, southern Arizona, and southern Texas south to northern Colombia.

Rare to casual vagrant along the rest of the gulf coast. Accidental vagrant to Utah, Colorado, Missouri, and Nova Scotia.

[edit] Taxonomy

[edit] Subspecies[1]

This is a polytypic species, consisting of four subspecies:

  • M. a. loyei:
  • South-western US to north-western Mexico (Sonora, Chihuahua, Durango and Nayarit)
  • M. a. assimilis:
  • South-western Mexico (Jalisco to Colima, Guerrero, Puebla, Oaxaca, Chiapas)
  • M. a. aeneus:
  • M. a. armenti:
  • Caribbean coast of northern Colombia - sometimes split as Bronze-brown Cowbird

[edit] Habitat

Open fields, scrubland, and forest.

[edit] Behaviour

[edit] Breeding

It is a brood parasite, laying its blue green eggs in the nests of other birds.

[edit] References

  1. Clements, JF. 2009. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2009. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. Wikipedia

[edit] External Links


Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.32770801 seconds with 8 queries
All times are GMT. The time now is 11:06.