Formerly treated as one of many races of C. mellisugus (which see); an alternative was, on basis of bill colour, to treat the five N subspecies (present species with auriceps, canivetii, osberti and salvini) as a separate species. A more radical evaluation of the complex#R is largely followed here but, owing to both the sheer number of taxa in the original complex and the diaspora of specimen material, comparisons between taxa and decisions on their taxonomic status are limited mainly to geographical neighbours. Thus, based on a scoring of the diagnostic differences given in the main detailed study#R, present form is specifically distinct from mainland C. auriceps on account of distinctly larger size (no overlap in wing chord) (2); broader and more rounded rectrices (1); blue-green vs golden-green inner rectrices of females (2); and duller, brownish-grey tips of male’s bluer tail (2 [1+1]); and from C. canivetii by larger size (allow 1); much longer tail in male (3) with brownish-grey vs grey tips (1); female tail with more extensive white on outer two rectrices (2). Monotypic.
Cozumel I, off coast of Yucatán. Recorded also on I Mujeres (N of Cozumel).
Food and feeding
Status and conservation
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