Aroostook National Wildlife Refuge Professional Review and Guide
"The refuge’s upland areas provide nesting habitat for warblers such as Blackthroated Green, Canada, Bay-breasted, Cape May, and Blackburnian Warbler. Boreal Chickadee and Gray Jay are also fairly common in upland woods here, as are Ruffed Grouse.
American Black Duck, Wood Duck, Hooded Merganser, Ring-necked Duck, Canada Goose, Bald Eagle, Great Blue Heron, and Belted Kingfisher frequent refuge wetlands. Upland Sandpiper, Bobolink, and Savannah Sparrow find suitable habitat on refuge grasslands."