Chichén, Itzá, Yucatán.
Usually considered conspecific with S. serripennis, but differs in its whitish frontal lores (2); broad black tips on undertail-coverts (2); darker upperparts (1); pale collar-line behind ear-coverts (ns); darker, more extensive grey-brown on flanks (ns); deeper tail fork (at least 1); wider-frequency excited calls (at least 1)#R; unclear whether breeding sympatry is also involved. Treatment as separate species supported by phylogenetic studies#R#R. Race burleighi of S. serripennis sometimes included in present species. Two subspecies recognized.
Food and feeding
Status and conservation
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