Description wikipedia

The grey-headed honeyeater (Ptilotula keartlandi) is a species of bird in the family Meliphagidae. It is endemic to Australia. Grey-headed honeyeaters are relatively small for honeyeaters with a total body length of 13–16.5 cm (5.1–6.5 in) and a weight of 12–18 g (0.4–0.6 oz). Individual wing length ranges from 67–81 mm (2.6–3.2 in), the tail is 55–69 mm (2.2–2.7 in) long, and the bill is 14.5–18.5 mm (0.6–0.7 in) in length. Adults have a distinctive grey crown above a black facial mask with the nape and remaining upper body parts coloured dark fawn-grey. The black facial mask extends from the base of the bill to the rear of the ear coverts, and comprises black lores, eye rings, feathers behind the eye, and grey-black ear coverts. The base of the mask is bordered by a thin, bright yellow plume which extends below and behind the ear coverts and a pale yellow, moustachial stripe located between the lores and throat. The bill is black, short and slightly down-curved with a yellow base on the lower mandible, although it may become fully black during breeding. The iris is black to dark brown, while the gape is yellow, turning black during breeding. The breast, belly, flanks, and throat are light olive-yellow streaked with brown, while the rump is light grey-brown. The flight feathers are olive-brown, edged with olive-yellow, which gives the wing a yellow panel when folded. The tail feathers are dark olive-brown edged in olive-yellow. There are ten primary flight feathers, ten secondaries and twelve tail feathers. There is no plumage difference between the sexes; however, there is some sexual dimorphism, as males are slightly heavier and larger than females. There is no geographical variation in plumage across the species range. Juveniles have similar plumage to adults, but are generally paler with a lighter grey-brown face mask. Juveniles also have grey-black bills with an orange-brown base, yellow gapes, and a lighter grey crown. Juveniles partially moult into immature plumage soon after fledging and, while immature plumage is similar to adult plumage, juvenile tail and flight feathers are retained, and immatures can be identified by the presence of fault bars in the tail. Moult into adult plumage occurs in the first year. The grey-headed honeyeater produces a continuous, peevish chip call when feeding, and a wee-wee-wee song. Other vocalisations include a loud, single kwoyt and chee-toyt, which is possibly only emitted during breeding.