Which of the following is NOT considered a nesting strategy for waterfowl?

Nesting on high branches of trees is not considered a typical nesting strategy for most waterfowl. Waterfowl, such as ducks and geese, primarily nest on the ground rather than in trees. Their nesting strategies have evolved to favor locations that provide accessibility and camouflage from predators. Ground nesting often occurs in areas like tall grasses or wetlands, which offer protection as well as proximity to water sources—both essential for their survival and the rearing of their young.

The other nesting strategies mentioned are characteristic of various waterfowl species, which commonly choose locations that enhance the likelihood of hatching and rearing ducklings successfully. Nesting near water sources is crucial for immediate access to food and safe escape routes. Similarly, nesting in reeds and marshes provides cover and protection from potential threats. Ground nesting in grasses allows the birds to blend in with their environment, further reducing predation risk.