Meet the world’s animals.

Photos: 12,768 · Stories: 19,540

• Pilotbird Pycnoptilus floccosus

  

  The Pilotbird forages among leaf litter in wet forests of southeastern Australia. It is reddish brown overall, with scaled-looking breast and belly feathers and a red eye. The source describes two subspecies whose back color and belly scalloping differ in brightness.

• Carruther's Mountain Squirrel Funisciurus carruthersi

  Carruther's mountain squirrel has an olive-green and black back, a pale belly, and a light ring around the eye. It occurs in central African mountain forests.

• Rusty-margined Guan Penelope superciliaris

  The Rusty-margined Guan lives in South American forests and scrub. In the Paraná forest of Argentina, pale feather edges make the adult breast look scaled.

• Amazonian Marsh Rat Holochilus sciureus

  The Amazonian Marsh Rat uses waterside habitats and wet grasslands. Coat color and reported range vary, and the older broad species account includes records that its authors considered uncertain.

• Prothonotary Warbler Protonotaria citrea

  The Prothonotary Warbler stands out as a bright yellow bird in dim wet forests. It forages low near water and nests in holes in standing dead trees.

• Yucatan Squirrel Sciurus (Sciurus) yucatanensis

  This squirrel lives around the Yucatán region and forages in trees and on the ground by day.

• Taiwan Fulvetta Fulvetta formosana

  This fulvetta is endemic to Taiwan's mountains. It moves in small flocks through understory and bamboo, feeding mainly on insects.

• Alfaro's Rice Rat Oryzomys alfaroi

  The current scientific name is Casiomys alfaroi. A 1946 description from Costa Rica reports an ochraceous back mixed with black hairs and a buff-white underside. A survey in Chiapas recorded it at Bird Friendly shade-coffee farms under its former combination, Handleyomys alfaroi.

• Rufous-fronted Babbler Cyanoderma rufifrons

  The Rufous-fronted Babbler is a small babbler of Asian forests. It searches among vegetation for small invertebrates.

• Phayre's Squirrel Callosciurus phayrei

  Phayre's Squirrel has pale stripes along its sides and ranges from southern China into eastern Myanmar.

• Chestnut-eared Aracari Pteroglossus castanotis

  The Chestnut-eared Aracari is a toucan with blue skin around the eye and a single red band across its yellow belly. It often uses forest edges, young forest, and fruiting trees.

• North American Water Vole Microtus richardsoni

  A vole that lives near water in western North American mountains. It burrows by water and is mostly active at night, though daytime activity has also been recorded.

• Yellow-crested Manakin Heterocercus flavivertex

  This manakin occurs in the lowlands of northern South America. At one study site in northern Venezuela it was observed in seasonally flooded forest and white-sand scrub woodland.

• Siskiyou Chipmunk Tamias (Neotamias) siskiyou

  Neotamias siskiyou ranges from the northern California coast to central Oregon. Coastal and inland populations differ in coat colour, including the back stripes and underside.

• Major Mitchell's Cockatoo Cacatua leadbeateri

  Major Mitchell's Cockatoo is a white and pink cockatoo with a large crest. When raised, the crest shows red-pink and orange bands. The bird lives in Australia's dry interior.

• Singing Vole Microtus miurus

  The singing vole occurs in alpine tundra in Alaska. The state agency's general account of voles describes related species that eat grasses and seeds and use runways and burrows.

• Purple-crested Turaco Gallirex porphyreolophus

  The Purple-crested Turaco is an African bird with a striking purple crest and greenish chin. It eats fruit in trees in forests and woodland.

• White-tailed Prairie Dog Cynomys (Leucocrossuromys) leucurus

  The white-tailed prairie dog lives in dry grasslands and shrublands, where it builds colonies of burrows.

• Yellow-browed Antbird Hypocnemis hypoxantha

  A small bird that searches dense foliage around treefalls and forest edges in Amazonian terra firme forest. The male has striking black, yellow, and white markings.

• Lesser Long-tailed Hamster Cricetulus longicaudatus

  This small hamster lives in dry grasslands and foothills, feeding mainly on seeds and also on insects.

• Retz's Helmetshrike Prionops retzii

  Retz's Helmetshrike lives in woodland south of the Sahara and forages in cohesive groups of several to more than a dozen birds.

• Sri Lankan giant squirrel Ratufa macroura

  A large squirrel of southern India and Sri Lanka, with a grizzled tail marked by pale hairs. It spends almost all its time in trees.

• Zimmer's Tapaculo Scytalopus zimmeri

  Zimmer's Tapaculo is a small ground-level bird of humid ravines and open woodland on the eastern Andes. A white throat and pale eyebrow stand out; it is usually alone or in pairs and is often heard before it is seen. This account is limited to southern Andean records in Bolivia and neighboring northwestern Argentina.

• Watson's Climbing Rat Tylomys watsoni

  Watson's climbing rat has a long, white-tipped tail and large ears. It uses trees at night but is also recorded on the ground around rocks and fallen logs.