Meet the world’s animals.

Photos: 12,636 · Stories: 19,540

• Golden-rumped Euphonia Euphonia cyanocephala

  

  The male has a blue head and back with a golden rump. The Peru species account associates the bird with semi-deciduous and humid montane forest, including places with mistletoes.

• Northern Amazon Red Squirrel Sciurus (Urosciurus) igniventris

  The northern Amazon red squirrel is a large tree squirrel of northwestern Amazonia. It can be difficult to distinguish from the southern Amazon red squirrel in the field, and one feeding study analyzed the two together.

• Rufous-winged Illadopsis Illadopsis rufescens

  The Rufous-winged Illadopsis searches the ground and low growth of West African evergreen forest. Its rufous-brown head and back contrast with pale underparts.

• Arizona Cotton Rat Sigmodon (Sigmodon) arizonae

  The Arizona cotton rat is a large rodent of the southwestern United States and northwestern Mexico. It has dark brown-black fur above and silver or white fur below.

• Yellowhammer Emberiza citrinella

  A bunting that stays on farmland in Britain year-round; males have a bright yellow head.

• Small Sun Squirrel Heliosciurus punctatus

  This squirrel has dark, soft fur and a long ringed tail. In West Africa, it is recorded in rainforest and forests within forest–savanna mosaics.

• Amazonian Black Tyrant Knipolegus poecilocercus

  Males are black, while females are olive-brown. The bird forages inconspicuously in dense understory in flooded or seasonally flooded forest.

• Tres Marías Deer Mouse Peromyscus madrensis

  This mouse is known from the Islas Marías off Mexico’s Pacific coast. Its records are tied to islands separated from the mainland.

• Grey Go-away-bird Crinifer concolor

  A uniformly gray turaco with a tall crest and long tail, it often perches in small groups in trees and bushes. It occurs in open woodland and scrub in southern Africa.

• Black Giant Squirrel Ratufa bicolor

  The black giant squirrel is a large, tree-dwelling squirrel of forests in South and Southeast Asia. Its dark coat, pale chest marking and long tail are distinctive.

• Bengal Florican Houbaropsis bengalensis

  The Bengal Florican lives in grasslands and has strongly different adult male and female plumage.

• Southern Pygmy Mouse Baiomys musculus

  The Southern Pygmy Mouse is a small mouse whose back fur varies from reddish-brown to dark across its range. It has been found in grassy and shrubby places and eats grass seeds, nuts, and other plant foods.

• Mountain Cacique Cacicus chrysonotus

  The Peru account describes this cacique in montane forest on the eastern Andes. It reports a yellow wing patch north of Junín and a yellow rump in southern populations.

• Colorado Chipmunk Tamias (Neotamias) quadrivittatus

  The Colorado chipmunk occurs in the southwestern United States, including Colorado and Utah. It forages on the ground and around logs, and stores food.

• Lattice-tailed Trogon Trogon clathratus

  This trogon lives in very wet mountain-slope forest in Costa Rica. Males are green and red, females are gray and brown, and the birds use the lower and middle forest levels.

• Long-tailed Colilargo Oligoryzomys longicaudatus

  A small rice rat found in Chile and Argentina. It has a long tail and is mostly nocturnal and terrestrial, though it climbs well.

• Woodwards' Batis Batis fratrum

  Batis fratrum lives on the coastal plain of southeastern Africa. Males have grey backs and a white wing-bar; females have a narrow pale eyebrow and rufous wing-bar. It searches for insects in forest understory.

• Japanese squirrel Sciurus (Sciurus) lis

  A squirrel of Japanese forests. It is active by day and continues foraging through winter without hibernating.

• Purple-throated Fruitcrow Querula purpurata

  The Purple-throated Fruitcrow is a large cotinga with a black body and bluish-grey bill. Males have a purple throat patch, and the species forages for fruit in Amazonian floodplain forest canopy.

• California Deermouse Peromyscus californicus

  The California deermouse is a relatively large mouse with a white underside and feet. It is active at night and often eats California bay seeds in woodland.

• Blue-winged Laughingthrush Trochalopteron squamatum

  The Blue-winged Laughingthrush uses forest undergrowth and bamboo in the Himalayas, from Nepal to southern China and nearby areas. Records are mainly from 900–2,440 m.

• Gray-collared Chipmunk Tamias (Neotamias) cinereicollis

  This chipmunk occurs in Arizona and New Mexico in the United States. It mainly uses conifer forests and mature woodlands and gathers and stores seeds.

• Tawny-throated Dotterel Oreopholus ruficollis

  This dotterel uses open grassland and stony ground in the Andes and elsewhere in South America. Adults have a tawny throat, and the sexes look similar.

• Hatt's Vesper Rat Otonyctomys hatti

  Hatt’s vesper rat is a small mouse with russet fur and a pale underside. It is often found in trees and feeds on seeds and fruits.