The Mallard is a widespread dabbling duck found across much of the Northern Hemisphere. Adult males have a glossy green head, yellow bill and chestnut breast, while females are mottled brown. It feeds at the surface or tips forward in shallow water to reach plants and invertebrates. Females incubate and care for the ducklings without help from the male. Most domestic duck breeds descend from this species.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.
