157228 Teal Anas crecca - mating pair. L 34-38cm. Our smallest duck. Forms flocks outside breeding season. Often nervous and flighty. In flight, both sexes show white-bordered green speculum. Sexes are otherwise dissimilar. Adult male has chestnut-orange head with yellow-bordered green patch through eye. Plumage is otherwise finely marked grey except for black-bordered yellow stern and horizontal white line along flanks. Bill is dark grey. In eclipse, resembles adult female. Adult female has mottled grey-brown plumage. Bill is grey with hint of yellow at base. Juvenile is similar to adult female but warmer buff. Voice Male utters a ringing whistle, female utters a soft quack. Status Associated with water. Nests in small numbers beside pools and bogs mainly in N. Locally common outside breeding season on freshwater marshes, estuaries and mudflats.