Puna Teal duck (Anas puna)
The Puna Teal (Anas puna) duck is a resident in the Andes of Peru, western Bolivia, northern Chile, and extreme northwestern Argentina. They have a black cap that extends to below the eyes. Their lower face and neck are creamy white. Their upper tail coverts are gray, and their rear flanks are dark brown with thin stripes. Back, chest and lower flanks are light coffee with dark brown spots. Their bill is large, light blue with a black line down the middle.
Photographed at the San Diego Zoo