ORDER IX.—LARIFORMES.

F. 32. LARIDAE (21), TERNS, NODDIES, GULLS, Skimmers, 125 sp.—32(13)A., 35(3)O., 45(1)P., 42(6)E., 43(5)Nc., 46(19)Nl.

2
4

64 Whiskered Tern (Marsh), Hydrochelidon fluviatilis (hybrida), Eur. (Br.) to China, Malay, Afr. to A.

r. swamps (inland) 11

Head black; upper, wings, tail light-gray; face, throat, tail white; chest dark-gray; abdomen black; bill blood-red; winter, head grayish-white; f., sim. Water-insects, small fish.

1
1

65 Gull-billed Tern (Long-legged), Gelochelidon macrotarsa (anglica), cos.
[~65-66 Genus Thalasseus.]

r. rivers, swamps inland 17

White; crown, hind-neck black; upper, wing-quills silvery-gray; bill long, stout, black; long legs and feet black; winter head white streaked black; f., sim. Small fish, insects.