. Bulletin of the British Ornithologists' Club. Birds. Figure 1. Heads of (Left) P. (proregulus) chloronotus, (Centre) '', and (Right) P. inornatus. Drawing by Per Alstrom. On 15 June 1988, at Western Hills, Beijing, Hebei Province (c. 40°N, °E), and observed a bird which alternated between a series of loud whistles and the Prinia-like song had heard on Emei Shan. This individual was also seen very poorly, but it also seemed to be chloronotus, which was then believed to have 4 different types of song (cf. Alstrom & Olsson 1990). On 9 June 1989, and fou
. Bulletin of the British Ornithologists' Club. Birds. Figure 1. Heads of (Left) P. (proregulus) chloronotus, (Centre) '', and (Right) P. inornatus. Drawing by Per Alstrom. On 15 June 1988, at Western Hills, Beijing, Hebei Province (c. 40°N, °E), and observed a bird which alternated between a series of loud whistles and the Prinia-like song had heard on Emei Shan. This individual was also seen very poorly, but it also seemed to be chloronotus, which was then believed to have 4 different types of song (cf. Alstrom & Olsson 1990). On 9 June 1989, and found a bird with the Prinia-like song in Jiuzhaigou, Sichuan Province (33°10'N, 104°18'E). It also had the same series of whistles that had been heard in Beijing the previous year. The bird was seen very well, and it was almost immediately realised that it was in fact not chloronotus, but probably an undescribed species, hereafter referred to as ''. During the same and the following day, it was found to be rather common in one part of the area, and we heard at least 15 individuals, of which excellent views were obtained of 5. The morpho- logical differences (see below) from chloronotus that we had noticed on the first individual were found to be constant. We also carried out a few vocal playback tests, which confirmed the distinctness from chloronotus. Unfor- tunately, we were unable to obtain a specimen, but it is planned to return in 1990. MORPHOLOGICAL CHARACTERISTICS OF ': Basically, is very similar to chloronotus and shares chloronotus' main features: small size; distinct head pattern, with dark lateral crown- stripes and pale median crown-stripe; distinct pale yellow rump; con- trastingly dark-centred greater coverts with broad pale tips, forming a prominent wing-bar (a second, narrower wing-bar is formed by pale tips to the median coverts); and pale edges to the tertials. However, differs from chloronotus in the following respects: is sl
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1893
