Order XI
Columbæ. - PIGEONS and DOVES.
FIG. 27.
Toes four, all on the same level, the hind one about as long as the shortest front one; bill rather slender, deeply grooved, the nostrils opening in a soft, fleshy membrane or skin. نے Family Columbida: PIGEONS and DOVES (Fig.
FIG. 28. 28), p. 187. ام a 13 b 43 FIG. 29.