Pachycephalopsis hattamensis Meyer, AB, 1874

Nominate race has crown and hindneck and side of head to below eye grey, lores white, back olive- green, uppertail- coverts rusty brown; flight- feathers dark brownish- grey, edged reddish- brown to olive- brown on outer webs, lesser and median upperwing- coverts olive- green; tail dark brownish- grey, rectrices edged reddish- brown to olive- brown; chin, upper throat and malar region white; underparts yellowish- olive, clearer and more yellow on lower abdomen, undertail- coverts orange, axillaries olive; iris pale grey; bill black; legs grey. Sexes alike. Juvenile undescribed. Race ernesti has breast darker green, with grey wash on upper part; insularis similar to previous, but white on chin reduced, uppertail- coverts olive (not brown), tail darker; axillaris has underparts paler, axillaries more yellow; lecroyae is darker overall, with throat white, lower breast lacking grey wash, undertail- coverts more orange, axillaries more olive.