. Bulletin of the British Ornithologists' Club. Birds. B. J. Best et al. 235 Bull. 1993 113(4). *V . /S " As ~*f S J** /**/*"/**"?*-* Figure 3. Calls of (a) Myrmeciza griseiceps, (b) Grallaria watkinsi, (c) and (d) Attila torridus; a, c and d from recordings made by F. Lambert. which has not been previously described, probably represents the territorial song of this poorly-known species. Many bird species in southwestern Ecuador breed during the rainy season (Appendix B, Marchant 1958), and these are the first records of this species during that period. Assuming the M. gr
. Bulletin of the British Ornithologists' Club. Birds. B. J. Best et al. 235 Bull. 1993 113(4). *V . /S " As ~*f S J** /**/*"/**"?*-* Figure 3. Calls of (a) Myrmeciza griseiceps, (b) Grallaria watkinsi, (c) and (d) Attila torridus; a, c and d from recordings made by F. Lambert. which has not been previously described, probably represents the territorial song of this poorly-known species. Many bird species in southwestern Ecuador breed during the rainy season (Appendix B, Marchant 1958), and these are the first records of this species during that period. Assuming the M. griseiceps also breeds at this time, it is thus not surprising that what we consider to be its territorial song has not hitherto been heard. The generic position of the species is unclear (Ridgely & Greenfield in prep.): it may prove not to be a Myrmeciza. The presumed song apparently does not match any known antbird genus, emphasizing the need for a taxonomic revision. On 15 and 16 February 1991 at least five further males gave the presumed territorial song from thick bamboo and non-bamboo undergrowth above Vicentino in Loja Province. When not vocalizing M. griseiceps can be almost impossible to detect in its impenetrable habitat. It is confined to a very small area of Ecuador's Loja and El Oro Provinces and adjacent Tumbes Department, Peru, and we believe it to. 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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