Grey Teal vs Mottled Duck

Grey Teal

Anas gracilis

Large488 gWetland

It is identified by the presence of a crimson coloured iris in its eyes, which is relatively more prominent in adult males. It is a mottled brown duck with white and green flashes on its wings. Males and females share the same colouration, in contrast to the related chestnut teal, male and female of which are strikingly different. The grey teal has almost identical colouration to the female chestnut teal and the grey can only be distinguished by its lighter coloured neck and paler face. Juveniles are paler than adults, especially on the head. Voice: The call of the grey teal can be heard as a cuck, cuck, cuck that is relatively rapid and includes a sharp whistle. The male and female calls are different in terms of volume and type. The male's call tends to be more of a whistle, whereas the female's call is very loud and harsh sounding. For short-distance communication, the birds have a softer variation of their calls.

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) Saryu Mae 前 朝琉, some rights reserved (CC BY), uploaded by Saryu Mae 前 朝琉 · cc-by

Mottled Duck

Anas fulvigula

Large843 gWetland

The adult mottled duck is 44 to 61 cm (17–24 in) long from head to tail. It has a dark body, lighter head and neck, orange legs and dark eyes. Both sexes have a shiny green-blue speculum (wing patch), which is not bordered with white as with the mallard. Males and females are similar, but the male's bill is bright yellow, whereas the female's is deep to pale orange, occasionally lined with black splotches around the edges and near the base. The plumage is darker than in female mallards, especially at the tail, and the bill is yellower.

ID text from Wikipedia, CC BY-SA 4.0

Photo: no rights reserved, uploaded by Andy Wilson · cc0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Grey Teal and Mottled Duck.