Non-native Vertebrates of Massachusetts

This encompasses many different clades so send me a message if any information is wrong or any species needs to be added; This is a a guide to all non-native Reptiles, Amphibians, Birds, Mammals, and Fish with breeding populations in the state of Massachusetts. Some animals like White Perch, Snowshoe Hare, etc. are native to some MA counties but invasive in others so just because it's on this list doesn't mean it's fully invasive. less ↑