Teals are small dabbling ducks. Males have chestnut coloured heads with broad green eye-patches, a spotted chest, grey flanks and a black edged yellow tail. Females are mottled brown. Both show bright green wing patches (speculum) in flight. They are thinly distributed as a breeding species with a preference for northern moors and mires. In winter birds congregate in low-lying wetlands in the south and west of the UK and Ireland. Of these, many are continental birds from around the Baltic and Siberia. At this time, the UK is home to a significant percentage of the NW European wintering population making it an Amber List species.