du Bus de Gisignies, 1855,
Colombia and Peru.
Until recently considered conspecific with A. nigrifrons. Traditionally treated as conspecific with A. rufinucha, but molecular studies indicate that the two are not even each other’s closest relatives, and one genetic study found present species to be paraphyletic with respect to A. pallidinucha#R. Has been suggested that these two species, together with A. terborghi and A. melanolaemus, and A. schistaceus, are related in a complex manner, with yellow coloration lost or gained in a “leap-frog” pattern, such that taxa that do not look alike visually may in fact be closely related to each other. Proposed race simplex (described from Bogotá, and probably originating from E Andes of Colombia) appears indistinguishable from spodionotus and is synonymized with it. Although different termination in species name from those of A. albinucha, A. pallidinucha and A. rufinucha might appear contradictory, all four names are correctly formed noun phrases#R, so in each case original spelling stands. Eight subspecies currently recognized.
Food and feeding
Status and conservation
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