Possible Clues:

• Term illustrated by parts of 61- and 67-Across
• Dog fails to start, being below par
• Bird on a U.S. quarter
• Bird in the constellation Aquila
• Score of two strokes under par for a golf hole
• Sharp-eyed bird of prey
• It keeps a sharp eye on German and American arms
• It's always below par
• A bald one is a US emblem
• Bird dog's not black