(824) Cisticola exilis equicaudata.
The Siam Golden-headed fantail-Warbler.
Cisticola erythrocephala equicaudata Stuart Baker. Bull B. O.C., xliv, p. 39) (1924) (Samkok, Siam). Cisticola volitans. Blanf. & Oates, i, p. 373.
Vernacular names. Noh sare hovey (Siam).
Description. Differs from both the preceding races in being much more grey and less rufous above; the black is lews pronounced and the grey edges to the feathers wider than the rufous edges in those races. In the breeding-season the head is a golden-rufous quickly bleaching to golden-yellow.
Colours of soft parts as in the other races.
Measurements. Wing 42 to 40 mm.; tail 24 to 30 mm. in (Summer. In Winter this race never has the tail exceeding 34 mm. and generally much less, wheareas Philippine birds never have it less than 45 mm. and running up to 48 nun. Tarsus about 18 mm.; culmen about 10 mm.
Distribution, Siam, South Burma.
The true volitans, from Formosa, has a much paler head, almost white.
Nidification. Mr. E. G. Herbert found this bird breeding round about Samkok and Bangkok in Siam but it seems to vary its haunts from year to year, some years being much more plentiful than in others. All the nests he found there were of the egg-shaped type. The eggs are laid during June and possibly July and are like those of the last race. Thirty eggs average 14.9 x 11.2 mm.: maxima 16.2 X 12.1 mm.; minima 13.2 X 11.0 mm. and 14.0 x 10.8 mm.
Habits. The Siam Golden-headed Fantail-Warbler is a bird of the grass-plains and grass-covered open places, such as race-courses etc. In its habits it does not otherwise differ from G. e. tytleri and like that bird is found in colonies.