Opossums are usually silent. If you hear one, it will be at night.
These pests will make clicking noises when they’re trying to attract mates and hissing or growling sounds when they feel threatened.
Baby opossums make noises that sound like sneezing when trying to get their parent’s attention.
What do opossum sounds mean?
Clicking and “choo choo” sounds coming from roofs and attics often mean that mothers and their babies have made their dens there.
Hisses and clicks in basements, garages, or under porches could be mating calls or attempts to frighten off predators like coyotes, foxes, or large dogs.