spurring

a. (Zool.) Having one or more spurs on the bend of the wings. [ 1913 Webster ]

Spur-winged goose (Zool.), any one of several species of long-legged African geese of the genus Plectropterus and allied genera, having a strong spur on the bend of the wing, as the Gambo goose (Plectropterus Gambensis) and the Egyptian, or Nile, goose (Alopochen Aegyptiaca). --
Spur-winged plover (Zool.), an Old World plover (Hoplopterus spinosus) having a sharp spur on the bend of the wing. It inhabits Northern Africa and the adjacent parts of Asia and Europe. [ 1913 Webster ]