A Guide to the Birds of Costa Rica

areas belly Bill black birds blackish blue Bolivia breast bright brownish buff buffy canopy Caribbean slope chest chestnut cinnamon Common resident Cordillera Central Cordillera de Guanacaste Cordillera de Talamanca Cordillera de Tilarán Costa Rica crissum crown dark brown darker DESCRIPTION dull duller dusky Ecuador Eggs epiphytes eye-ring feathers flanks flight flocks Flycatcher foliage foothills forages forehead Golfo Dulce grayish green Guanacaste HABITS hindneck hummingbirds Immatures insects Iris legs lowlands male mandible Mexico migrant neck NEST notes numbers olive olive-green Pacific slope pairs pale gray paler Panama perch pileum plumage RANGE rarely rectrices remiges rest of upperparts Río rufous rump savannas semi-open shading shrub sides of head sometimes song species spotted STATUS stripe superciliaries tail-coverts tall second growth Tanager throat tinged trees twigs uncommon underparts understory usually Valle Central VOICE Warbler whistles whitish wing-bars wing-coverts wing-linings wings and tail winter yellow yellowish Young