Abundance: 0.02 to 11.00% (median 1.41%)
Latitudinal range: 20.1° to 64.9°Habitats: Mediterranean woodland (8), boreal forest/taiga (5), desert/xeric shrubland (2), temperate broadleaf/mixed forest (20), temperate coniferous forest (2), temperate savanna (1), temperate wetland (3)
Found in 41 samples
Canada: Avalon Peninsula, Calling Lake (treatment), Calling Lake (control), Tantramar Marshes, Churchill Falls
Czech Republic: Certak
France: Piémanson Beach
Italy: Parco Regionale Gallipoli Cognato Piccole Dolomiti Lucane
Japan: Otayama Bird-Observatory (1974), Otayama Bird-Observatory (1975), Otayama Bird-Observatory (1976), Otayama Bird-Observatory (1977), West Coast Park
Mexico: Rancho Santa Elena
Portugal: Mata Nacional do Choupal
Romania: Grindul Lupilor
Russia: Biological Station Rybachy, Muraviovka Park
Spain: Cazorla (fruitless season), Cazorla (fruiting season), El Viso, Mumao
Switzerland: Portalban (Wald)
United Kingdom: Portland Bird Observatory
United States: 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), McGregor Range (upland), Yakutat, Creamer’s Field Migratory Waterfowl Refuge (spring), Creamer’s Field Migratory Waterfowl Refuge (fall), St. Catherine's Island, Wedge Plantation, Clayhead Preserve, China Creek Park, Drivers Flat (birds)
See also Regulus calendula, Regulus ignicapillus, Regulus regulus, Regulus satrapa