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Nestwatch Blog: "predator guard"


How to Protect Tree-Mounted Nest Boxes from Snakes

Most predator guards that prevent climbing predators are built for nest boxes that are mounted on poles. New research supports the effectiveness of a simple DIY predator guard meant to deter snakes from tree-mounted boxes.


Predator Guards Carry Their Weight

It took just four years to answer the decades-old question of “Are predator guards on nest boxes actually helpful?” With the power of citizen science, NestWatchers helped us use the best science available in a national study of cavity-nesting birds.

Cornell Lab of Ornithology

Cornell Lab of Ornithology