. Birds. Birds. STBHITA. 315 greenish grey, very beautifully blotched, spotted, or streaked with blackish, red-brown, and inky purple, and measuring on an average 2-45 by 1-71. 1503. Sterna seena. The Indian River-Tern. Sterna seena, Sykes, P. Z. S. 1832, p. 171; Hume ^ Oates, 8. F. iii, p. 103 i Butler, S. F. iv, p. 32; Fairbank, ibid. p. 264; Inglis, S. F. V, p. 47; Hume ^ Dav. 8. F. vi, p. 492; Anders. Yunnan Fxped., Aves, p. 693; Ball, S. F. vii, p. a33 ; Oripps, ibid. p. 314; Hume, Cat. no. 985: Scully, S. F. viii, p. 364; Legge, Birds Ceyl. p. 1003; Butler, S. F. ix, p. 440; Reid, S. F.
. Birds. Birds. STBHITA. 315 greenish grey, very beautifully blotched, spotted, or streaked with blackish, red-brown, and inky purple, and measuring on an average 2-45 by 1-71. 1503. Sterna seena. The Indian River-Tern. Sterna seena, Sykes, P. Z. S. 1832, p. 171; Hume ^ Oates, 8. F. iii, p. 103 i Butler, S. F. iv, p. 32; Fairbank, ibid. p. 264; Inglis, S. F. V, p. 47; Hume ^ Dav. 8. F. vi, p. 492; Anders. Yunnan Fxped., Aves, p. 693; Ball, S. F. vii, p. a33 ; Oripps, ibid. p. 314; Hume, Cat. no. 985: Scully, S. F. viii, p. 364; Legge, Birds Ceyl. p. 1003; Butler, S. F. ix, p. 440; Reid, S. F. x, p. 86 ; Davidson, ibid. p. 326; Oates, 3. B. ii, p. 423; Barnes, Birds Bom. p. 4^9; id. Juur. Bom. N. H. Sac. i, p. 61 ; vi. p. 294; Hume, ^ S. F. xi, p. 350; Oates in Hume's N. 8f E. 2nd ed. iii, p. 308. Sterna aurantia., Gray, in Hardw. III. Ind. Zool. i, pi. 69, fig. 2 (); Hume, S. F. i, p. 281. Seena aurantia,Blytk, Cat. p. 291; Jerdon, B. I. iii, p. 838; Aust. J. A. S. B. xxxix, pt. 2, p. 275; Hayes Lloyd, Ibis, 1373, p. 421; Blyth ^ Wald. Birds Burm. p. 163 ; Ibis, 1877, p. 472; Saunders, Cat. B. M. xxv, p. 37. The Large River- Tern, / Fig. 72.—Head of S. seena. Coloration. The whole head to considerably belovir the eyes and including the nape black glossed with dark green, a white spot under each eye; rest of upper parts French grey, paling to pearl- grey on the rump and tail; chin and a streak on each cheek bordering the black cap, together with the under tail-coverts, white; remainder of lower surface, inclusive of wing-lining, delicate pale grey. After the moult, which does not occur till about December, the forehead is white and the crown dull grey, then black streaks appear and the black cap is generally assumed by February. Toung birds have the feathers of the upper parts dull grey, with an inner brown and an outer buff margin. Bill bright deep yellow; irides brown ; legs red {Jerdon). The bill and legs are duller coloured an
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