Federal and State-listed as Endangered
- In 2004, the State of Maine supported 170 pairs of roseate terns, nesting on seven islands. This represents a 40% decrease from 2003, primarily caused by mammalian predation on several of the larger tern colonies.
- Maine Department of Inland Fisheries and Wildlife owns Eastern Egg Rock, and in 2004 the island supported 69% of the roseate terns nesting in Maine. National Audubon Society works with MDIFW to manage this colony.
Federal and State-listed as Threatened
- Many of the 346 pairs of eagles nesting in Maine utilize the coastal region for nesting or foraging during some portion of the year.
- In 2004, seven Refuge islands supported nesting eagles. Two addition pairs nested on the mainland portion of the Refuge.
The Refuge also supports a number of Maine Threatened Species.Arctic Tern
- In 2004, the State of Maine supported 3,445 pairs of Arctic terns, nesting on 10 islands
- Arctic terns travel an amazing distance during their annual migration. Each year the birds leave their breed islands in Maine, fly across the Atlantic Ocean, travel south to Africa, and spend much of the winter feeding along the Antarctic coastline before heading north to start the breeding season in May and June. We estimate this to be an annual migration of over 25,000 miles.
- The oldest known Arctic tern is a 34 year old Petit Manan Island bird !!
- Maine represents the southern boundary of Atlantic puffin breeding in the United States. In 2004, approximately 600 pairs of Atlantic puffin bred in Maine.
- Three of the four islands supporting nesting puffins are part of Maine Coastal Islands NWR.
- Maine represents the southern boundary of razorbill breeding in the United States. In 2004, approximately 350 pairs of razorbills bred in Maine.
- Razorbills are currently breeding on six islands in Maine, four of which are part of Maine Coastal Islands NWR.