. Bulletin of the British Ornithologists' Club. Birds. b *\ J' i i 1 Vi 1 ! f • I V \ s \ \ a ^AW^JlJ. 10 e 8 6 4 \"\ 21 J S-1 - ^/SrkU^mMjjsj 1 s Figure 2. (a-b) Two types of full song by one and the same Willow Warbler (Klaebu, 18 May 1992;. (c) Song by another Willow Warbler (Venabu, 24 June 1990). Notice the faint introductory note Ca), which is homologous to the 'interval signal' shown in Fig. lb, although somewhat different in shape, (d—e) Two versions of pure Willow Warbler song given by the mixed singer at Heimdal (13 July 1983). S-I-S-II = syllables I-II (see text).. Please note
. Bulletin of the British Ornithologists' Club. Birds. b *\ J' i i 1 Vi 1 ! f • I V \ s \ \ a ^AW^JlJ. 10 e 8 6 4 \"\ 21 J S-1 - ^/SrkU^mMjjsj 1 s Figure 2. (a-b) Two types of full song by one and the same Willow Warbler (Klaebu, 18 May 1992;. (c) Song by another Willow Warbler (Venabu, 24 June 1990). Notice the faint introductory note Ca), which is homologous to the 'interval signal' shown in Fig. lb, although somewhat different in shape, (d—e) Two versions of pure Willow Warbler song given by the mixed singer at Heimdal (13 July 1983). S-I-S-II = syllables I-II (see text).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Ornithologists' Club. London : The Club
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1893
