

Profile

In flight
Songbirds
Connecticut Warbler
Oporornis agilis
- rare
- 32 km/h
- Least Concern
Almost never seen in Connecticut. Skulks through bogs and rarely shows itself. Birders travel far for a glimpse.
- Population
- ~1.8 million mature individuals (Partners in Flight, 2019 estimate; data quality rated "poor")
- Habitat
- Remote boreal muskeg, spruce bogs, and moist poplar/aspen or tamarack forests with dense ground cover during breeding; dense tropical forest understory/thickets in winter and on migration.
- Fun fact
- The Connecticut Warbler is a notorious ground-skulker that walks (rather than hops) through dense understory like a tiny thrush, and after the recent reclassification of the mourning, Kentucky, and MacGillivray's warblers into Geothlypis, it is now the sole remaining member of the genus Oporornis.
- Range
- Breeds across central Canada (boreal forest belt) into the western Great Lakes states; migrates mostly through the eastern/central US; winters in the Amazon Basin of northern South America (Colombia, Venezuela, Guyana, Peru, Brazil).
- Diet
- Insectivorous — beetles, caterpillars, ants, spiders, and other invertebrates gleaned from the ground and leaf litter, occasionally supplemented with seeds and berries.
- Size
- 0.14 m
- Wingspan
- 0.225 m
- Lifespan
- 4 years











