A monarch feeds on a cowpen daisy Cheri McEwin, SCA A big attraction for nature lovers at Amistad is the fall monarch butterfly migration. Year after year, thousands of monarchs roost in the same few trees as they head to their windering grounds in Mexico. For more information and photos, visit our Field Guide to Butterflies.
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.