Bangs and Noble, 1918,
Has been treated as conspecific with M. choliba, but vocalizations distinct. Smaller race pacificus (originally described as subspecies of M. guatemalae) recently treated as separate species in major works#R#R, hence also in subsequent regional guide#R, on basis of “morphology and vocalisations”, but songs appear identical to those of roboratus#R (this supported by material on xeno-canto and contra some published statements#R) and morphological differences involve much smaller size (based on published data#R), with effect size for weight of males 5.45 (score 3), and “averaging slightly grayer, especially dorsally”#R (1). Nevertheless, size difference unusual and further study, including confirmation of vocal similarities, appropriate. Two subspecies recognized.
Food and feeding
Status and conservation
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