395. Hypolais pallida.
The Olivaceous Tree-Warbler.
Curruca pallida, Hemp. & Ehr. Symb, Phys., Aves, fol. bb (1833). Hypolais pallida (H.& E.), Hume, S. F. vii, pp. 398, 504; id. Cat. no. 553 ter; id.' S. F. ix, p. 231; Seebohm, Cat. B. M. v, p. 82; Barnes, Birds Bom. p. 225.
Coloration. Resembles H. rama in colour, but differs in being larger, in the tip of the secondaries being .55 to .65 from the tip of the wing, and the tip of the first primary 1.3 to 1.5 short of the same.
Length nearly 6; tail 2.2; wing 2.5 to 2.7; tarsus .8; bill from gape .75; the second primary is between the sixth and eighth.
In H. pallida the difference between the Length of the wing and that of the tail is considerably greater than in H.. rama, in which it is frequently not more than .1.
Distribution. Hume received this bird from Sehwan, but subsequently doubted the identification of the specimen, thinking it to be an abnormal H. rama. Dresser, however, distinctly states that he has seen Sind specimens of H. pallida, It is a bird which is most likely to be found in Sind, and so I admit it to my list. Barnes states that this bird occurs in Sind as a cold-weather visitant, but on what authority I do not know, unless it be that of Murray, who calls it a winter visitor to Sind.
Its summer-quarters extend to Turkestan, South-western Asia, Europe, and North-eastern Africa.