Fundy is well positioned on the Atlantic migration route, and over 260 bird species have been identified in the park or on the adjacent bay.
Of those, approximately 95 species have nested in the park. Common species in the park include many types of warblers, pileated wood-peckers, juncos, white-winged crossbills, great blue herons, cormorants, semi-palmated sandpipers and semi-palmated plovers. The Peregrine falcon, which was extirpated by the time the park was established in 1948, has been successfully reintroduced.
A common resident of Fundy's forests is the ruffed grouse. Early spring resonates with the deep thumping sounds of the male grouse's drumming.