Birds of Prey:
* Hawks: Red-tailed hawks, Cooper's hawks, and other hawks can prey on mallards, especially ducklings.
* Owls: Great horned owls, barred owls, and other owls are nocturnal predators that can hunt mallards.
* Eagles: Bald eagles and golden eagles can take down adult mallards.
Mammals:
* Raccoons: Raccoons are opportunistic predators that can raid nests and kill ducklings.
* Foxes: Red foxes, gray foxes, and other foxes can hunt mallards.
* Coyotes: Coyotes can prey on mallards, especially in areas where they are abundant.
* Dogs: Domestic dogs can be a threat to mallards, especially if they are not kept on leash.
* Snakes: Some snakes, like garter snakes, can eat ducklings.
Other Animals:
* Alligators: In areas with alligators, they can prey on mallards.
* Large Fish: Some large fish, like pike and bass, can prey on ducklings.
It's important to remember that the specific predators of mallards vary depending on their location. For example, alligators are only a threat in the southeastern United States.