C. f. albifrons, argentinus, bolivianus, cinereocephalus, dwighti, eminens, exitelus, falconensis, flavopectus, fulvigularis, hiaticolus, honduratius, jacqueti,  macarenae, nigriceps, olsoni, ophthalmicus, peruvianus, phaeocephalus, ponsi, postocularis, punctulatus, regionalis, trudis, venezuelanus ha wetmorei,