Abundance: 0.00 to 4.78% (median 0.59%)
Latitudinal range: 9.2° to 53.6°Habitats: (1), boreal forest/taiga (1), temperate broadleaf/mixed forest (2), temperate savanna (1), temperate wetland (1), tropical/subtropical moist broadleaf forest (4)
Found in 10 samples
Canada: Tantramar Marshes, Churchill Falls
Costa Rica: La Selva Biological Station (intact forest)
Guatemala: Finca Caobanal, Puerto Barrios (mist netted birds)
Panama: Limbo Hunt Club (forest)
United States: William Trelease Woods (gap, spring), Lucky Peak (willow riparian), Hiram, Meyer Cave (Holocene)
See also Empidonax, Empidonax \"traillii complex\", Empidonax affinis, Empidonax albigularis, Empidonax alnorum, Empidonax difficilis, Empidonax euleri, Empidonax flavescens, Empidonax flaviventris, Empidonax fulvifrons, Empidonax hammondii, Empidonax minimus, Empidonax oberholseri, Empidonax occidentalis, Empidonax trailii, Empidonax traillii, Empidonax virescens, Empidonax wrightii