








About the Bay-ringed Tyrannulet
The bay-ringed tyrannulet is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Brazil, and Paraguay.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
The bay-ringed tyrannulet is about 12 cm (4.7 in) long and weighs about 8 g (0.28 oz). The sexes have the same plumage. Adults are rufous-chestnut at the lores whose color extends to a wide eye-ring. The upper part of their face is olive and the lower part pale yellow. Their crown and upperparts are bright olive. Their wings are dusky with olive edges on the flight feathers. Their wing coverts are dusky with pale yellow tips that form a wing bar. Their tail is dusky with olive edges to the feathers. Voice: The bay-ringed tyrannulet's song is a "rapid, almost level twittering, sounding (simplified) like twitwi--twididirit-tjutju". The twi notes are extremely high and the tjutju descends and is low pitched.
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
When to see it
Peak activity in October · a resident species across most of its range
Easily confused with
Restinga TyrannuletPhylloscartes kroneiThe restinga tyrannulet is about 12 cm (4.7 in) long and weighs 7.25 to 10 g (0.26 to 0.35 oz).
Panama TyrannuletPhylloscartes flavovirensThe Panama tyrannulet is 10 to 11 cm (3.9 to 4.3 in) long; one female weighed 8.8 g (0.31 oz).
Cinnamon-faced TyrannuletPhylloscartes parkeriThe cinnamon-faced tyrannulet is about 11.5 cm (4.5 in) long; six individuals weighed between 7.6 and 9.1 g (0.27 and 0.32 oz).
Learn the Bay-ringed Tyrannulet for real
BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.
Play BeakBrainEvery photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.