Haliaetus leucocephalus.
1705. The Bald-Eagle no sooner perceives a Hawk that has taken his Prey, but he immediately pursues.Beverley, Virginia, ii. 35.
1775. The Bald-eagle, which is generally upon the watch, instantly pursues, and if it can overtake, endeavours to soar above it [the hawk].Andrew Burnaby, Travels in North America, p. 62 n.
1815. The wolf, the bear, and the bald eagle, were the most frequent emblems on the tavern-signs, near the acclivities of these Allegheny] mountains.T. Flint, Recollections, p. 6 (1826).