Abundance: 0.00 to 18.40% (median 1.90%)
Latitudinal range: -27.2° to 64.9°Habitats: (1), Mediterranean woodland (3), boreal forest/taiga (5), desert/xeric shrubland (2), temperate broadleaf/mixed forest (18), temperate coniferous forest (1), temperate savanna (1), temperate wetland (1), tropical/subtropical dry broadleaf forest (7), tropical/subtropical moist broadleaf forest (19)
Found in 58 samples
Belize: Belize Groves Management Company Limited (orange orchard #4), Hill Bank
Bolivia: Noel Kempff Mercado National Park
Brazil: Federal University of Acre
Canada: Avalon Peninsula, Calling Lake (treatment), Calling Lake (control), Tantramar Marshes, Charlotte County, Churchill Falls
Colombia: Mirití Paranâ River
Costa Rica: La Selva Biological Station (intact forest), Savegre Lodge (primary forest), Savegre Lodge (secondary forest), Finca La Bella, University of Georgia San Luis Research Station, Monteverde
Ecuador: Podocarpus National Park
Guatemala: Purulha, Finca Caobanal, Puerto Barrios (mist netted birds)
Mexico: Sierra de Huautla Biosphere Reserve (birds), La Paz, Rancho Santa Elena, Finca Irlanda (winter 2001), Finca Irlanda (winter 2002), Santa Martha (second growth), Santa Martha (open)
Nicaragua: Siuna (birds, secondary forest), Siuna (birds, allspice)
Panama: Limbo Hunt Club (forest), Pipeline Road (March 1980)
United States: Baldwin County, La Salle Creek Bog, Camarillo Oak Grove County Park, Sandrock Cliff (spring), Sandrock Cliff (fall), William Trelease Woods (gap, spring), Wateree, Lucky Peak (willow riparian), McGregor Range (arroyo), Yakutat, Hiram, Hopland Research and Extension Center, Creamer’s Field Migratory Waterfowl Refuge (spring), Creamer’s Field Migratory Waterfowl Refuge (fall), Dawes County (in-channel), Missouri Ozark Forest Ecosystem Project (1998), St. Catherine's Island, Wedge Plantation, Laudholm Farm, Clayhead Preserve, China Creek Park, Meyer Cave (Holocene), Clive Runnells Family Mad Island Marsh Preserve, Drivers Flat (birds)
See also 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 sp., Empidonax trailii, Empidonax traillii, Empidonax virescens, Empidonax wrightii