A bird of
Zosterops erythropleura was captured and banded at Ota-yama Banding Station, Fukui Prefecture in 7th November 1974. This is the first record from Japanese Islands. The general characters of the bird coincide with the descriptions by Yamashina (1934), Dementiev et al. (1954) and Mees (1957). The characters of the bird are as follows: Measurements (mm): Wing 61; Tail 43; Exposed Culmen 9.45; Tarsus 16.90. Upper parts generally green peculiar to
Zosterops, on head and rump yellowish. Throat yellow-ochre; upper breast fine silver-grey; lower breast and belly pure white; flanks dark brown russet (or chestnut). Leg pale grey; toes flesh. Bill, from tip to two third of upper mandible and tip to half of under mandible black, the rest of mandibles pale brown. Iris chestnut. According to Yamashina and Dementiev et al, the bird is probably an adult male.
Moult: The bird is moulting on throat and large wing feathers. Primaries 1st-4th fully grown, 5th score 4, 6th-9th score O; secondaries 1st score 3, 2nd-6th score O; Tertials 2nd score 4. 1st and 3rd score O (the moult score after B. T. O.'s denotation).
At Ota-Yama Banding Station, 583 and 536
Z. j. japonica were captured in 1973 and 1974, respectively, during autumn banding seasons, and we believe that the most of them were migrating from the northern breeding arears to the southern warm winter quarters. Yet, we have no observation suggesting that the bird of
Z. erythropleura might mix with the flock of
Z. japonica.
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