. Bulletin of the British Ornithologists' Club. Birds. P. Alstrbm & U. Olsson 40 Bull.B.O.C. 1990 110(1) â 2 a i 2. 3 A '*i* ill! ill! â 1/ ' AA 1 F J" 1 1 , . : â .;M,:taw a â¢â¢ !,iiHll -AS â ill A ,. I I V y J Figure 2. Parts of continuous song of (nominate) Phylloscopus proregulus (a-e), Heilongjiang Province, China, June 1987. Complete type A song (/), and part of type B (subtype 1) song (g) of P. (p.) cholorono- tus (see text), Sichuan Province, China, May 1987. Call of proregulus (h), Heilong- jiang Province, China, June 1988. Call of chloronotus (i), Sichuan Province, China,

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. Bulletin of the British Ornithologists' Club. Birds. P. Alstrbm & U. Olsson 40 Bull.B.O.C. 1990 110(1) â 2 a i 2. 3 A '*i* ill! ill! â 1/ ' AA 1 F J" 1 1 , . : â .;M,:taw a â¢â¢ !,iiHll -AS â ill A ,. I I V y J Figure 2. Parts of continuous song of (nominate) Phylloscopus proregulus (a-e), Heilongjiang Province, China, June 1987. Complete type A song (/), and part of type B (subtype 1) song (g) of P. (p.) cholorono- tus (see text), Sichuan Province, China, May 1987. Call of proregulus (h), Heilong- jiang Province, China, June 1988. Call of chloronotus (i), Sichuan Province, China,

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Image ID: RGGEHE

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