Birda Logo
Features
Birda+
About
Species Guide
Challenges
Shop
loading...

Connecticut Warbler

Oporornis agilis

The Connecticut Warbler, Oporornis agilis, is a modestly sized member of the New World warbler family. Adults typically reach a length of 13–15 cm (5.1–5.9 in) with a wingspan of 22–23 cm (8.7–9.1 in). Upon fledging, they weigh approximately 10 g (0.35 oz), growing to an average adult weight of 15 g (0.53 oz). Prior to migration, they may increase their weight to a substantial 25 g (0.88 oz) to endure the arduous journey. Exhibiting olive upperparts and light yellow underparts, they possess a light eye-ring, pink legs, a lengthy tail, and a slender, pointed bill. The male is distinguished by a grey hood, while females and immature birds are more brown with a whitish throat.

Identification Tips

When attempting to identify the Connecticut Warbler, look for the light eye-ring and the contrast between the grey hood of the male and the more subdued brown tones of the female and young. The pink legs and long tail are also key characteristics to note.

Habitat

The Connecticut Warbler favors bogs or open deciduous woods near water, particularly areas with poplar, spruce, tamarack, or aspen. These habitats are often in remote regions, making data collection challenging.

Distribution

During the breeding season, this warbler can be found in central Canada and states adjacent to the Great Lakes. It migrates to the Amazon Basin in South America for the winter.

Behaviour

Connecticut Warblers are ground foragers, often seen picking through dead leaves or hopping along branches. They exhibit a solitary nature but may form small groups during migration. Males are territorial during the breeding season, defending areas of 0.24–0.48 hectares.

Song & Calls

The song is a robust series of "cheepa-cheepa" notes, similar in pitch to the Kentucky Warbler and the Ovenbird. Its call is a nasal, raspy "witch," typically heard during the breeding season.

Breeding

Breeding begins shortly after arrival at the breeding grounds, with males singing to attract females. They produce one brood per season, nesting in thick understory for protection against predators. Eggs are creamy with chestnut and bay speckles and blotches, incubated solely by the female. Fledglings emerge in late July to August, nourished by both parents with a diet of caterpillars, larvae, moths, and berries.

Similar Species

The Connecticut Warbler might be confused with other skulking warblers, but its unique song, eye-ring, and the male's grey hood help distinguish it.

Diet and Feeding

This warbler's diet consists mainly of insects, including spiders, snails, and caterpillars, with occasional supplements of seeds and berries. They are known for their "skulking" behavior, foraging within dense, low vegetation.

Conservation status

The Connecticut Warbler is currently listed as Least Concern by the IUCN. However, certain populations are at risk, and conservation efforts are hampered by limited research. Threats include collisions with man-made structures, habitat destruction, and the effects of pesticides and power lines on their breeding grounds. Conservation plans focus on preserving woody wetlands, the preferred habitat of this species.

App logo
Birda is a birdwatching app and community aimed at curious people who want to deepen their connection with nature.

Connecticut Warblers on Birda

Photos
Sightings

More New World Warblers

A photo of a Golden-crowned Warbler (Basileuterus culicivorus)

Golden-crowned Warbler

Basileuterus culicivorus
Birda Logo

Your birdwatching journey like never before

Connect with nature in minutes
Take a walk, look out of the window and log the birds that you see. Feel good about those little connections to nature.
Discover the joy of birding
Find new birding spots, see more birds, share and celebrate with a like-minded community of nature lovers.
Play your part in saving nature
Logging your birding sightings and sessions turns into positive action for our planet. Every sighting counts.

Birda Blog

What Our Birders Say
Talli A
My favourite app
As a young birdwatcher who was always keen to be apart of a community but never seemed to find one, my problem was solved downloading this!!! Everyone is so friendly and just as excited to see birds as me 😁
Alex J
Friendly and helps to identify birds
Great birding app, good for logging your sightings, also has nice species guide. I'm enjoying the social aspect more than I expected, everyone seems friendly and helps to identify unknown birds. Good mix of newbies and experienced users.
JCBirding
Just what birding needs
We need more fun in birding, for years it has had a reputation for being up tight and stuffy and only perused by retirees and anoraks. Birda helps change that perception and firmly brings birding into the 21st century! Fun, interactive while still contributing to science and conservation. If you aren’t on it, why not??
Bryan C
Clean and easy to use
Really enjoying this app, it's clean and easy to use. I love the ease of being able to add those one-off birds without starting a whole checklist. I also like the social aspect, like the parts of my Facebook I like, without the ads and junk, just birds. Can't wait to see it become more populated.
BCHphotography_
Such a great app!
I didn’t think I could enjoy birding more but this app makes it so much better. Some great features and a really great way to share your sightings with your friends or fellow birders nearby or around the world! ❤️
Nicole
Gets me outdoors more
I'm still loving this app. I use it most days & gets me outdoors more. Enjoying watching others progress and photo's, it's improved my wellbeing.... I love this app! I can keep a record of sightings and see what others have seen too.
Hip An
Fantastic
Really enjoying Birda where I live i have a lot of Red kites really hard to photograph but I can video are you planning some place on the app where us Birda can post vids🦉🦅
Pdydhdrexgi
Fantastic App
This is a really lovely app, for everyone interested in birds - from newbies to old hands. There is a very friendly feel to the community and you will genuinely learn a lot as you record your sightings and photos. There are lots of badges and competitions to keep you engaged, and a host of really useful features.
Alice J
Awesome Birding Community
I absolutely love the community aspect of this app. The app is so user friendly and has fun interactive challenges to get you out birding. I’ve tried others but since I’ve started using Birda I’ve not gone back!
Nick S
Work together with community
Been loving using this app to log my bird sightings and work together with community members to identify different birds. I've already learned a lot since I started about a month ago!
As featured in
Birda Logo
AboutPressAmbassadorsAffiliatesInfluencersCareersPrivacyTerms & Conditions
An app for birdwatchers
Connect with us
Copyright © 2024 Chirp Birding. All rights reserved.