Can predators of bluebirds climb PVC pipe?

Many predators of bluebirds, such as raccoons and cats, are capable climbers and can easily scale a PVC pipe if it is not designed to be slick or obstructive. However, PVC pipe can deter some smaller or less agile predators, depending on its height and the surrounding environment. To enhance protection, it’s often recommended to use baffles or other deterrents in conjunction with PVC structures. Overall, while PVC pipe can provide some level of protection, it is not foolproof against all potential predators.