Andy Trowbridge / Grey teal (Anas gracilis) perched on branch. Ashley River, Canterbury, New Zealand. July.

Andy Trowbridge / Adult Grey teal (Anas gracilis) perched on branch, its bright red eye suggest that this is a male. Christchurch, New Zealand. May.

Brent Stephenson / A spring of Grey teal (Anas gracilis) perching on a log on the edge of a pond. Included in the photo are from left to right, a juvenile, an adult, and two immatures. Te Awanga Lagoon, Hawkes Bay, New...

Brent Stephenson / Adult Grey teal (Anas gracilis) closeup showing the bright red eye, suggestive that this bird is a male. Te Awanga Lagoon, Hawkes Bay, New Zealand, September.

Brent Stephenson / Small group of Grey teal (Anas gracilis) in flight showing the distinctive wing pattern. Otaki, Wellington, New Zealand, August.

Tui De Roy / Grey Teal (Anas gibberifrons gracilis) captive. Otorohanga Breeding Facility, New Zealand.

Doug Gimesy / Coalition Against Duck Shooting (CADS) protestor holding a dead Grey teal duck (Anas gracilis). As part of an annual protest against Victoria's duck season, rows of illegally shot threatened species,...

Doug Gimesy / As part of an annual protest against Victoria's duck season, rows of illegally shot threatened species, protected species, as well as game species that duck shooters left dead or dying in the water ar...

Doug Gimesy / As part of an annual protest against Victoria's duck season, rows of illegally shot threatened species, protected species, as well as game species that duck shooters left dead or dying in the water ar...

Doug Gimesy / Grey teal (Anas gracilis) with pools of blood behind eye, shot and then rescued during Victoria's duck hunting season, later euthanised, Little Lake Buloke, Victoria, Australia.

Doug Gimesy / Grey teals (Anas gracilis) shot and held by a hunter during the opening hours of the duck hunting season, Kerang Wetlands, Victoria, Australia.

Doug Gimesy / One Grey teal (Anas gracilis) and two Pink-eared ducks (Malacorhynchus membranaceus) on the back of a hunter's truck, shot on the opening weekend of Victoria's duck hunting season, Kerang Wetlands, Vi...