Mammals:
* Raccoons: These opportunistic omnivores are known to raid nests and snatch young water hens.
* Mink: These semi-aquatic weasels are skilled swimmers and can easily hunt water hens, especially chicks.
* Snakes: Some snake species, like garter snakes and water snakes, will prey on water hen eggs and young.
* Dogs: While not a natural predator, unleashed dogs can pose a serious threat to water hens.
Birds:
* Hawks: Red-tailed hawks, Cooper's hawks, and other raptors are known to hunt water hens, especially when they are perched or on the ground.
* Owls: Great horned owls, barred owls, and other owls can also prey on water hens, especially at night.
* Herons: Great blue herons and other herons will occasionally snatch young water hens.
Other:
* Large fish: In some cases, large predatory fish like bass or pike can eat young water hens.
* Alligators/Crocodiles: In areas where these reptiles are present, they can pose a threat to adult water hens as well.
It's important to remember that water hens have evolved certain defenses to avoid predators, including their ability to dive and swim, their camouflage, and their aggressive behavior. However, they are still vulnerable, especially when they are young or nesting.