. The birds of the Republic of Panama. Birds. FAMILY TROGLODYTIDAE 85 cepted by other recent students. With the considerable series now avail- able it is clearly evident that thoracicus is uniformly and heavily streaked with black and white over throat and breast. In T. leucopogon the marking is confined wholly to the upper throat, with foreneck and breast immaculate. The two styles of marking are clear cut in their differences, with no intergradation. THRYOTHORUS NIGRICAPILLUS Sclater: Bay Wren, Cucarachero Cabecinegro Figure 10 Thryothorus nigricapilhis Sclater, Proc. Zool. Soc. London,
. The birds of the Republic of Panama. Birds. FAMILY TROGLODYTIDAE 85 cepted by other recent students. With the considerable series now avail- able it is clearly evident that thoracicus is uniformly and heavily streaked with black and white over throat and breast. In T. leucopogon the marking is confined wholly to the upper throat, with foreneck and breast immaculate. The two styles of marking are clear cut in their differences, with no intergradation. THRYOTHORUS NIGRICAPILLUS Sclater: Bay Wren, Cucarachero Cabecinegro Figure 10 Thryothorus nigricapilhis Sclater, Proc. Zool. Soc. London, pt. 28, May 1860, p. 84. (Nanegal, 4000 feet elevation, Ecuador.) Medium size; crown and hindneck black, rest of upper surface chestnut-brown, with wings and tail barred black; throat white, rest of undersurface chestnut or Figure 10.—Bay Wren, Cucarachero Cabecinegro, Thryothorus 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 Wetmore, Alexander, 1886-1978. Washington : Smithsonian Institution
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