Читать книгу A Manual of Philippine Birds - Richard C. McGregor - Страница 208

A hard round knob at bend of wing; a small fleshy wattle on each side of head at base of bill; bill plover-like with a decided swelling at the tip; nostril linear in a groove; wing pointed, first and second primaries equal and largest; tarsus long, covered with large hexagonal scales which appear as transverse plates in front; front toes webbed at base; hind toe small.