Anhingas nest individually in loosely constructed nests made mostly of sticks and Spanish moss, usually in low bushes such as willow. They sometimes take short cuts with nest building by incorporating a bromeliad into the superstructure. If they do nest near other anhingas, it is usually just a few birds.
Eggs are buff colored, with an average of four to a nest.
The eggs hatch asynchronously, meaning young hatch at different times. This gives the first hatched an advantage over the late hatched. Incubation is usually 4 weeks. Young stay around nest until they fledge at 4-5 weeks. They can use their beaks and feet to climb.