The White Plumed Honeyeater is a medium sized bird. It is quite common in backyards in Australia and certainly around water in the bush. These birds can be quite aggressive towards other birds in my experience and will often be seen diving and chasing other species.
The plumage does not differ between the sexes. The distinguishing characteristic is a conspicuous white plume across the neck from the throat to the edge of the nape. The top of head and neck are olive, with a yellow eye-ring surrounding a black-brown to olive-brown eye. Cheeks and ear coverts are yellow-olive, with the rear coverts tipped black, creating a short black stripe along the anterior edge of the neck plume. The chin and throat are dull yellowish-olive.
The upperparts are uniform grey-olive and the uppertail coverts have a yellowish tinge. Upperwing coverts are mostly brown with olive to yellow-olive tips or edges, creating a somewhat scalloped appearance. Remiges are dark brown with yellowish edges to secondaries, forming a yellow-olive panel when the wing is folded. Uppertail is olive-brown with yellow-olive outer edges. Underbody is mainly light brown-grey, with pale yellow streaks in the centre of the breast, pale yellow on the upper belly, flanks and undertail coverts, and cream on the lower belly. Underwing coverts are off-white with brown-grey remiges. Undertail is brownish grey.