Fauna
Bird

Mexican Duck

Anas diazi

Mexican ducks are hardy dabbling ducks finely adapted to the arid wetlands and highland basins of northern Mexico and the American Southwest. Both sexes display mottled dusky-brown plumage resembling a dark female mallard, accentuated by a striking bluish-green speculum bordered by narrow white edges. Often encountered in pairs or small family groups, they feed in shallow ponds, irrigation ditches, and ephemeral desert marshlands.

WaterfowlWetlandDabbling Duck
Mexican Duck reference1 / 7
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyPondweed, Aquatic insects, Grass seeds
Predators
  • Coyote
  • Raccoon
  • Peregrine Falcon
ThreatsWetland loss, agricultural water diversion, drought, and hybridization with feral mallards
HabitatsFreshwater marshes, shallow ponds, rivers, and agricultural irrigation canals
Life span5–10 years in the wild
  1. OrderAnseriformes
  2. FamilyAnatidae
  3. GenusAnas
  4. SpeciesAnas diazi
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Field ID: Check bill color carefully; males typically have olive-yellow bills without black splotches.
  • Observing: Use a spotting scope near wetland vegetation to view them without flushing the flock.
  • Hybrids: Look for curled central tail feathers or pale white tail edges indicating mallard ancestry.
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