256. Anous leucocapillus.
THE WHITE-HEADED NODDY.
Male 11" to 13". Legs black. Bill black. Front and crown white. Lores and chin black. Nape and shoulders nearly blue-black. In tail, third feather from outside the longest. Rest of plumage sooty brown. Tropical seas. (J. 994. B. 1516. S.F. ii. 322.)
Also A. hawaiiensis. 13 1/2" Legs brown. Bill black. Forehead and crown greyish white. Lores black. Cheeks and throat lead-grey. Nape, shoulders, mantle, and tail dull lavender-grey. Third tail-feather from outside longest. Below sooty black. Sandwich Islands.
A. tenuirostris. 12". Legs brown. Bill black, A small black circlet above the eye, followed by minute white eyelid streak and then a small black spot. Cheeks grey. Lores lavender. Third tail-feather from outside longest. From Seychelles and Madagascar to Australia.
Also the genus Procelsterna. With second feather from outside of tail longest. Foot very long. General colour grey. Two species— P. caerulea, 9 3/4", legs brown, bill blackish, dark grey above, pale grey below, shafts of primaries black, Central Polynesia ; and P. cinerea, 11", legs reddish black, bill black, pale grey above, white below, shafts of primaries brown, Australian and New Zealand seas.