"Sterna fuliginosa. Sooty Tern. feet stout; toes short; with much incised webs; tibia bare .70; tarsus 1.00; middle toe and claw 1.20; outer do. 1.05; inner do. .75; hind do. .30. "Elliot Coues, 1884

Sooty Tern Foot

"Sterna fuliginosa. Sooty Tern. feet stout; toes short; with much incised webs; tibia bare .70; tarsus…