mallard

Anas platyrhynchos

Member of ducks, geese, and swans (family Anatidae)
waterfowl (order Anseriformes)
waterbirds
birds (class Aves)
animals (kingdom Animalia)

Caution: There are other wild species of this genus not yet included in this guide.

domestic mallard
Anas platyrhynchos var. domesticus

There isn’t a clear alternative variety/subspecies for wild mallards.

Chris’s observations: 37 (all are research grade)

Locations:

Coyote Hills RP: 6
Garin RP: 5
Santa Clara, CA: 4
Henry Coe SP: 3
Ed R. Levin CP: 2
Five Canyons Open Space: 2
Guadalupe River Trail: 2
Pleasanton Ridge RP: 2
Santa Clara Central Park: 2
Almaden Quicksilver CP
Calero CP
Coyote Creek Trail
Dry Creek Pioneer RP
Joseph D. Grant CP
Lake Chabot RP
Nisene Marks SP
Sanborn CP
Sunol Wilderness RP

Months:

Nov.: 1
Dec.: 1
Jan.: 8
Feb.: 7
Mar.: 6
Apr.: 4
May: 5
Jun.: 4
Jul.: 0
Aug.: 1

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Taxon info: iNaturalist – AllAboutBirds

Bay Area species: iNaturalist