Meet the world’s animals.

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• Common Goldeneye Bucephala clangula

  

  The male has a green-black head with a round white spot, while the female's head is brown. In North America, it breeds by northern forest lakes and winters on lakes and coasts.

• Chestnut-crowned Laughingthrush Trochalopteron erythrocephalum

  A 24–26 cm laughingthrush of Himalayan forests and bamboo. Its brown body has a chestnut forehead and nape and green-gold wing and tail panels; head color varies among subspecies.

• Campo Troupial Icterus jamacaii

  Campo Troupials occur in northeastern Brazil, extending south to Minas Gerais and Espírito Santo. Adults have orange, black, and white plumage; juveniles are duller, with brownish-black areas and pale orange-yellow underparts. They may use domed stick nests built by other birds.

• Eastern Marsh Harrier Circus spilonotus

  The Eastern Marsh Harrier flies low over open areas such as grassland and marshes, and may perch close to the ground.

• Speckled Spinetail Thripophaga gutturata

  The Speckled Spinetail lives in riverside and lowland forests on the Amazonian side of the Andes. It is spotted below and is reported to eat mainly spiders and cockroaches.

• Botha's Lark Spizocorys fringillaris

  This stocky lark inhabits highland grasslands in South Africa. It favors flat or gently sloping ground with short, dense grass, and the sexes look similar.

• Visayan Pygmy Babbler Dasycrotapha pygmaea

  A small bird of Leyte and Samar in the Philippines. It feeds at middle heights in forest and sometimes joins mixed-species flocks.

• Half-collared Sparrow Arremon semitorquatus

  The Half-collared Sparrow inhabits the understory of montane forest and secondary growth in southeastern Brazil. Males have a yellow lower mandible and a broken breast band. A 2022 report recorded one bird singing at a forest edge.

• Vulturine Parrot Pyrilia vulturina

  The Vulturine Parrot lives in humid lowland forest in northern Brazil. Adults have a mostly bare head and a yellow collar against a green body.

• Sunda Minivet Pericrocotus miniatus

  This minivet was recorded in forests on Java. At Mount Lawoe, the account places it near the upper parts of trees and reports beetle wing cases in one stomach.

• Southern Crag-Martin Ptyonoprogne fuligula

  The Southern Crag-Martin nests on cliffs and buildings in southern Africa. It catches small insects in flight and is distributed across the region.

• Roll's Hill Partridge Arborophila rolli

  This pheasant-family bird lives in forests of northwestern Sumatra. It has a brown, dark-marked back, a reddish-brown breast, a white belly, and bold black-and-white bars on its flanks.

• Princess Parrot Polytelis alexandrae

  The Princess Parrot occurs in central and western Australia. Males are notable for a blue crown and pink throat.

• Mourning Warbler Geothlypis philadelphia

  The Mourning Warbler is a small warbler that breeds in North America and migrates through Central America to South America. Breeding males have a gray hood and black chest patch.

• Cryptic Flycatcher Ficedula crypta

  This elusive flycatcher lives on Mindanao in mountain forest. It is recorded alone or in pairs in low vegetation on wet ravine slopes.

• Ash-throated Crake Mustelirallus albicollis

  This crake walks cautiously among wetland grasses and reeds while searching for insects and seeds. In Iberá, it is more often detected by its voice than seen.

• Grey-hooded Sunbird Aethopyga primigenia

  Males have a grey head and throat, metallic bronze-green forehead and ear-coverts, yellow rump, white breast, and yellow flanks. On Mindanao it uses forest and edges and visits banana flowers.

• Blue Petrel Halobaena caerulea

  The Blue Petrel is a small seabird with a blue-gray back, a dark eye mask, and a white belly. It feeds at sea and carries food to its chick at a breeding site.

• Black-faced Rufous Warbler Bathmocercus rufus

  The Black-faced Rufous Warbler moves through dense undergrowth in damp forests of central and eastern Africa. The male has a black face and throat, chestnut upperparts, and grayish underparts, and searches for insects. The identification account centers on males, so it does not represent full female plumage.

• Cave Swiftlet Collocalia linchi

  The Cave Swiftlet is a small swiftlet found on islands including Java. Its green gloss and square-ended tail are useful field marks.

• Wood Sandpiper Tringa glareola

  A migratory sandpiper that uses shallow freshwater wetlands in Australia, walking through water as it searches for small prey.

• Blue-faced Honeyeater Entomyzon cyanotis

  Adult Blue-faced Honeyeaters have conspicuous deep-blue skin around the eyes and may forage in groups. In the Hunter Region, they use open woodland near water and often reuse old nest material or nests.

• Yellow-collared Chlorophonia Chlorophonia flavirostris

  The Yellow-collared Chlorophonia is a small bird whose male has a green head and yellow eye-ring. It forages in the canopy of humid forest, mainly for small fruits.

• Pied Crow Corvus albus

  The Pied Crow is a large crow found across much of Africa. Its black head and wings contrast with a white body patch.