International Union for Conservation of Nature. Bangladesh Country Office. (2015). Red List of Bangladesh. Volume 3: Birds. IUCN Bangladesh Country Office.
Dyfyniad Arddull ChicagoInternational Union for Conservation of Nature. Bangladesh Country Office. Red List of Bangladesh. Volume 3: Birds. Dhaka: IUCN Bangladesh Country Office, 2015.
Dyfyniad MLAInternational Union for Conservation of Nature. Bangladesh Country Office. Red List of Bangladesh. Volume 3: Birds. IUCN Bangladesh Country Office, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.