Until recently treated as subspecies of C. rubiginosus, but differs in male’s red supercilium extending from nape to above eye vs extending from nape to bill (2); rear ear-coverts clear vs barred (1); bars on underparts more scale-shaped (1); wings and tail longer (effect size for tail vs C. r. yucatanensis 3.63; score 2); wholly different song (deliberate slow-paced series of c. 6 typical picoid high-pitched calls, “kwi, kwi, kwi, kwi, kwi, kwi”, vs protracted rising rattling trill), extensive playback experiments yielding frenzied response from own taxon, no response from other taxon#R#R (4). Monotypic.
E Mexico (Tamaulipas to C Veracruz).
Food and feeding
Status and conservation
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