1920s middleweight champ Harry, 4 letters
Aquatic bird similar to a loon, 5 letters
Bird related to the loon, 5 letters
Loonlike diving bird, 5 letters
Small compact-bodied almost completely aquatic bird that builds floating nests, 5 letters
Similar to loons but smaller and with lobate rather than webbed feet, 5 letters
American diving birds, 6 letters