Meet the world’s animals.

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• Cassin's Sparrow Peucaea cassinii

  

  This grayish-brown sparrow has a faint eye-ring. It feeds on the ground in dry grasslands, and breeding males sing as they rise and float back down through the air.

• Gilbert's Honeyeater Melithreptus chloropsis

  This honeyeater inhabits the wetter forests of southwestern Western Australia. Adults have pale bare skin around the eye and feed on nectar and insects.

• Blackish-grey Antshrike Thamnophilus nigrocinereus

  Males are dark gray with a pale belly, while females have a dark crown and otherwise brown plumage. The cinereoniger subspecies in northeastern Colombia uses seasonally flooded savanna woodland and gallery forest.

• Hook-billed Hermit Glaucis dohrnii

  The Hook-billed Hermit lives in a limited part of Brazil's eastern Atlantic Forest. It drinks flower nectar and also eats small arthropods.

• Short-crested Monarch Hypothymis helenae

  This monarch flycatcher occurs in the Philippines. A study on Luzon found a nest in secondary forest.

• Satin Swiftlet Collocalia uropygialis

  A swiftlet of South Pacific islands including Vanuatu, it has satiny blue-black upperparts and a broad white rump band.

• Winding Cisticola Cisticola marginatus

  Cisticola marginatus occurs in western and eastern sub-Saharan Africa. The nominate subspecies in breeding plumage has a rufous crown and dark dorsal streaks.

• Sand-colored Nighthawk Chordeiles rupestris

  The Sand-colored Nighthawk has sandy mottled plumage and occurs along rivers in the Peruvian Amazon region. It also forages above rivers during the day.

• Fawn-breasted Wren Cantorchilus guarayanus

  The Fawn-breasted Wren is about 13 cm long. It uses lowland forest understory, thickets, and forest edges and eats invertebrates. A Paraguay study found three nests in riparian forest.

• Madagascar Harrier-Hawk Polyboroides radiatus

  This raptor is endemic to Madagascar and uses its long legs to search tree trunks and crevices. It also soars slowly between trees while looking for prey.

• Montane Widowbird Euplectes psammacromius

  Males have yellow wing patches that can act as signals in territorial contests. In a field experiment in southern Tanzania, males whose patches were blackened more often lost territories or contests.

• Madagascar Coucal Centropus toulou

  In breeding plumage, the Madagascar Coucal is black with rufous-chestnut on the lower back and wings. It occurs on Madagascar and Aldabra.

• White-browed Laughingthrush Pterorhinus sannio

  Its main range extends from northeastern India through Myanmar, northern Laos, and Vietnam to central and southern China. An isolated population also occurs in Hong Kong.

• White-eyed Gull Ichthyaetus leucophthalmus

  An adult in breeding plumage has a black hood and white crescents around the eyes, but the irises are dark brown. This gull is endemic to the Red Sea.

• Palau Owl Otus podarginus

  This owl has rufous, barred plumage and a yellow bill. It occurs across the Palau islands in mangroves, rainforest, and around villages.

• Bridled White-eye Zosterops conspicillatus

  The Bridled White-eye occurs in the Mariana Islands. The living population around Saipan has olive-green upperparts and a white ring around each eye.

• Asian Short-toed Lark Alaudala cheleensis

  The Asian Short-toed Lark is a small lark with streaks on its breast and back. It favors open, dry ground with sparse vegetation, and its appearance and range vary by region.

• Splendid Sunbird Cinnyris coccinigastrus

  This sunbird lives in savanna and woodland in tropical West and Central Africa. Males show metallic green, blue, violet, and scarlet; females are mainly gray with yellow on the belly.

• Virginia Rail Rallus limicola

  Virginia Rails forage by probing shallow water and mud in marshes, where emergent plants such as cattails and bulrushes provide cover.

• Westland Petrel Procellaria westlandica

  The Westland Petrel breeds around Punakaiki on New Zealand's South Island. It has dark plumage and a yellow bill with a dark tip, and is mainly nocturnal at its breeding colony.

• Black-capped Siskin Spinus atriceps

  A siskin with a black cap and yellow-green body. It occurs in highlands from southern Mexico to Guatemala.

• Grosbeak Starling Scissirostrum dubium

  This starling is endemic to Sulawesi, Indonesia. It lives mostly in tropical lowlands and lightly wooded forest and excavates nest cavities in rotting or dying trunks.

• Yellow-browed Warbler Phylloscopus inornatus

  This small leaf warbler has a yellow eyebrow and two wing bars. It breeds in the Siberian taiga and spends most of the winter in Southeast Asia.

• Swainson's Warbler Limnothlypis swainsonii

  Swainson's Warbler has a stocky body and a heavy bill that it uses to turn leaf litter while searching for insects and spiders. It breeds in dense swamps and canebrakes of the southeastern United States.