Meet the world’s animals.

Photos: 12,676 · Stories: 19,540

• Bay-headed Tanager Tangara gyrola

  

  The Bay-headed Tanager has a chestnut head, green back, and blue-green rump and underparts. It eats fruit in forest canopies and edges and may join mixed-species flocks.

• Choco Tyrannulet Zimmerius albigularis

  This small bird occurs in humid forest in south-western Colombia and western Ecuador. It has olive upperparts, a white throat, and yellowish flanks and undertail.

• Viridian Metaltail Metallura williami

  This hummingbird is recorded in the highlands of the Sibundoy area of Colombia. Male and female throat and tail patterns differ, and males defend feeding areas.

• Black-and-white Tanager Conothraupis speculigera

  This tanager breeds in northwestern Peru and moves to the eastern Andean foothills and adjacent lowlands afterward. Males are black and white, females are mainly olive, and both sexes have red irises.

• Rufous-headed Pygmy Tyrant Pseudotriccus ruficeps

  The Rufous-headed Pygmy Tyrant was recorded in the understory of Colombia’s western Andes. At La Linda, observers heard a few individuals daily and captured an adult male in dense Chusquea bamboo.

• Amethyst Woodstar Calliphlox amethystina

  The Amethyst Woodstar is a small hummingbird recorded widely in South America. A male’s throat can be iridescent purple in breeding plumage and much duller outside that period.

• Scarlet-browed Tanager Heterospingus xanthopygius

  This tanager occurs from Panama through Colombia to Ecuador. Males are mostly black with a white eyebrow and scarlet eyebrow tufts; the species uses humid lowland forest and its edges.

• Blue-billed Black Tyrant Knipolegus cyanirostris

  A tyrant flycatcher of forest edges and waterways, especially in southeastern Brazil. Males are glossy black with a pale bluish bill and red eyes.

• Blue-tailed Hummingbird Saucerottia cyanura

  This hummingbird occurs in lowlands and foothills from southern Mexico through Central America. A blue tail, purplish rump, and rusty wing patch are key marks; it visits flowering trees and shrubs.

• Grey Pileated Finch Coryphospingus pileatus

  The Grey Pileated Finch is a South American finch found in Brazil, Colombia, and Venezuela. It searches for seeds on the ground and low shrubs; males can raise a red crest.

• Puna Ground Tyrant Muscisaxicola juninensis

  This terrestrial tyrant flycatcher lives in Andean grassland and steppe. It searches for insects in short runs and hops near rocky outcrops.

• Black-breasted Hillstar Oreotrochilus melanogaster

  Males have black underparts and a glossy green throat. Females have grayish underparts. Peruvian highland records describe birds catching insects at streams.

• Azure-rumped Tanager Poecilostreptus cabanisi

  The Azure-rumped Tanager occurs in Pacific-slope mountains of western Guatemala and Chiapas, Mexico. A Guatemalan study recorded it in humid broadleaf forest and shade coffee plantations.

• Pileated Flycatcher Xenotriccus mexicanus

  A flycatcher of Mexican woodlands and thorn thickets; the sexes are similar in plumage.

• Wire-crested Thorntail Discosura popelairii

  This hummingbird is recorded in humid forests of southern Colombia. Breeding males have wire-like ornamental feathers.

• Black-chested Mountain Tanager Cnemathraupis eximia

  This tanager inhabits high-elevation forests and scrub in the northern Andes. It eats fruit and insects and moves through the canopy in small or mixed flocks.

• Johannes's Tody-Tyrant Hemitriccus iohannis

  This small tyrant flycatcher lives in the forest understorey of Amazonia. It forages in dense foliage, forest edges, secondary growth, and along rivers and lakes; records reach about 800 m on the Andean foothills.

• Golden-breasted Puffleg Eriocnemis mosquera

  This hummingbird is recorded in the Andes of Colombia and northern Ecuador. A field guide for the Sibundoy Valley describes individuals defending flower patches while feeding on nectar.

• Slender-billed Finch Xenospingus concolor

  It occurs in arid regions from central Peru to northern Chile, including riparian woodland and scrub near coastal wetlands.

• Hangnest Tody-Tyrant Hemitriccus nidipendulus

  This small tyrant flycatcher is endemic to Brazil. It has an olive-green head and back and eats mostly insects in humid forests.

• Rainbow Starfrontlet Coeligena iris

  It is about 15 cm long. Six subspecies are listed from southern Ecuador to northern Peru.

• Chestnut Seedeater Sporophila cinnamomea

  This migratory bird lives in the grasslands of southern South America. Its breeding range includes Argentina, Uruguay, Paraguay, and southern Brazil; after breeding it moves north to central Brazil and other areas.

• Maracaibo Tody-Flycatcher Todirostrum viridanum

  A tiny tyrant-flycatcher restricted to arid northwestern Venezuela. It has subdued plumage and a long, pointed bill.

• Purple-crowned Fairy Heliothryx barroti

  The adult male has a shining purple crown and green upperparts; the female lacks those colors.