Rod Williams / Two Black-billed / West Indian whistling duck {Dendrocygna arborea} Cuba. Captive

Rod Williams / Black-billed / West Indian whistling duck {Dendrocygna arborea}, Cuba. Captive

Hanne & Jens Eriksen / Lesser whistling duck (Dendrocygna javanica) at edge of lake, India, January.

Tony Wu / Lesser whistling teals (Dendrocygna javanica) swimming with a brood of twelve chicks, Sri Lanka

Hanne & Jens Eriksen / Lesser whistling duck (Dendrocygna javanica) four on water, India, January.

Hanne & Jens Eriksen / Pallas's gull (Ichthyaetus ichthyaetus) adult in flight, Oman, February.

Will Burrard-Lucas / West Indian Whistling Duck (Dendrocygna arborea) Grand Cayman Island, Cayman Islands.

Loic Poidevin / Indian whistling ducks (dendrocygna javanica) group on water, India, March

Kevin Schafer / West Indian Whistling-Duck (Dendrocygna arborea) roosting in tree, Dominican Republic

Rod Williams / West Indian / Black Billed Whistling-duck (Dendrocygna arborea). Captive. Endemic to Bahamas, Greater and Lesser Antilles. Vulnerable. UK, April.

Rod Williams / West Indian / Black Billed Whistling-duck (Dendrocygna arborea) calling. Captive. Endemic to Bahamas, Greater and Lesser Antilles. Vulnerable. UK, April.

Rod Williams / West Indian / Black Billed Whistling-duck (Dendrocygna arborea) foraging at water surface. Captive. Endemic to Bahamas, Greater and Lesser Antilles. Vulnerable. UK, April.

Sharon Heald / Flock of Lesser / Indian whistling ducks {Dendrocygna javanica} in flight, Bandhavgarh National Park, India 2007

Rod Williams / Wandering whistling duck {Dendrocygna arcuata arcuata} East Indian race, pair, captive, from SE Asia

Rod Williams / Indian whistling duck {Dendrocygna javanica} pair, captive, from Asia

Elio Della Ferrera / Flock of Indian Whistling teal in flight {Dendrocygna javanica} Assam, India

Jean-Pierre Zwaenepoel / Indian / Lesser whistling ducks {Dendrocygna javanica} Keoladeo Ghana NP, Bharatpur, Rajasthan, India

Ripan Biswas / A bag confiscated from a poacher containing dead birds including Red-headed swamp hen (Porphyrio sp.), Bronze-winged jacana (Metopidius indicus), Cotton pygmy goose (Nettapus coromandelianus), Eurasia...

Aishwarya Sridhar / Lesser whistling duck (Dendrocygna javanica) standing in long grass, Uran, Maharashtra, India.

Philippe Clement / Lesser whistling duck / Indian whistling duck (Dendrocygna javanica) pair, native to Indian subcontinent and Southeast Asia. Captive