Mottled brown plumage for camouflage, with a dark crown and eye-stripe.
Distinguished by a glossy emerald-green head , white neck collar, and bright yellow bill. anas platyrhynchos
Both sexes have a iridescent purplish-blue wing patch (speculum) bordered by white, visible during flight. Behavior and Ecology Mottled brown plumage for camouflage, with a dark
Mallards are significant hosts for avian influenza viruses (including H5N1) and are often studied in environmental toxicology. Mottled brown plumage for camouflage