- 5.1–5.9 in
- 7.1–7.9 in
- 0.3–0.6 oz
- Moucherolle à ventre jaune (French)
- Mosquito oliva, Mosquerito de vientre amarillo, Mosquareta barriga-amarilla, Mosquerito vientriamarillo, Mosquero vientre amarillo, Tontín oliva (Spanish)
- The Yellow-bellied Flycatcher winters in semi-open habitats of Central America, including coffee plantations. Shade-grown coffee plantations have higher densities of Yellow-bellied Flycatchers than sun-grown coffee plantations.
- The oldest recorded Yellow-bellied Flycatcher was a female, and at least 5 years, 2 months old, when she was recaught and rereleased during banding operations in New York.
- Breeds in boreal coniferous forests and peatlands. Nests in cool, moist forests, bogs, swamps, and muskegs.
- Winters in variety of habitats from forests to semi-open habitats. Most common in dense rain forest, montane evergreen forest, pine-oak forest, and shaded coffee plantations.
Insects and arthropods. Occasionally takes fruit.
- Clutch Size
- 2–5 eggs
- Egg Description
- White with light speckling of fine dots and small blotches of brown around larger end.
- Condition at Hatching
- Hatch naked and helpless.
Nest built on or near ground, well covered with hanging vegetation. Nest made mostly of moss, lined with rootlets, pine needles, or grass stems.
Flight song given at predawn or dusk.Catches flying insects in mid-air, or gleans them from foliage.
Yellow-bellied Flycatcher numbers are stable and increased between 1966 and 2014, according tot he North American breeding Bird Survey. Partners in Flight estimates a global breeding population of 12 million with 3% spending some part of the year in the U.S., 45% in Mexico, and 97% breeding in Canada. They are a U.S.-Canada Stewardship species and rate a 9 out of 20 on the Continental Concern Score. They are not on the 2014 State of the Birds Watch List. Most of this flycatcher's breeding range in Canada is remote and secure. However, on the wintering grounds it is vulnerable to forest destruction. Shade-grown coffee plantations have higher densities of Yellow-bellied Flycatchers than sun-grown coffee plantations.
- Gross, D. A., and P. E. Lowther. 2001. Yellow-bellied Flycatcher (Empidonax flaviventris). In The Birds of North America, No. 566. (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
- North American Bird Conservation Initiative, U.S. Committee. 2014. State of the Birds 2014 Report. U.S. Department of Interior, Washington, DC.
- Partners in Flight. 2012. Species assessment database.
- USGS Patuxent Wildlife Research Center. 2015. Longevity records of North American Birds.
- USGS Patuxent Wildlife Research Center. 2014. North American Breeding Bird Survey 1966–2014 Analysis.