• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Connecticut Warbler - BirdForum Opus

Oporornis agilis
Photo by Glen Tepke
Boston, Massachusetts, USA, September 2004


15 cm

  • Light yellow underparts
  • Olive upperparts
  • Light eye ring
  • Pink legs
  • Long tail
  • Pale wing bars
  • Thin pointed bill.

Males have a grey hood; female and immature browner with a whitish throat.


Breeding Central Canada from central eastern British Columbia east to central Quebec; also in northern Minnesota and northern Great Lakes.

Winter South America.

Rare vagrant in the western United States. They have an unusual migration pattern, moving north through the center of North America in spring and south along the Atlantic coast in the fall.


This is a monotypic species[1].

Possibly hybridizes with Mourning Warbler.


Breeding bogs or open deciduous woods near water, especially with poplar or aspen.


Their numbers may be in decline due to loss of winter habitat.




The nest is an open cup well-concealed in moss or a clump of grass.


  1. Clements, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
  2. Answers.com

Recommended Citation

External Links