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Adult males of the nominate subspecies have a glossy purple-red head, which turns black towards the lores (region between the eyes and beak) and base of the bill. The chin, throat, and ear-coverts are slightly lighter, with a black band across the neck; this neckband is sometimes faint or absent in males from Borneo and Java. The top of the head is glossy maroon black and turns grey towards the back of the neck. The upper back is maroon-tinged dark brown; the rest of the back is mostly black, except for a central line of yellow streaks. The primary feathers are dark brown, with thin yellow edges that are present as a yellow line on the bend of the wing. The remaining wing-coverts are blackish, with yellowish markings. The secondaries have bright yellow edges to their outer margins that form a well-marked, trapezoidal patch on the wing. The underparts are pale pinkish-violet to wine-red, with a grey tinge to the chin and upper breast and a pure grey breast-band. The tail is dark black and has white spots on the underside, the undertail-coverts are pale yellow and the rump has a variable black and yellow pattern. The brilliant turquoise blue beak is broad and hooked, edged green or black.[7][12] It is among the widest-billed broadbills, with a thick, heart-shaped, and wide tongue that allows it to mash and "chew" its food, helping the species consume relatively large prey.[15][16] The irises are pale yellow in javanicus and sapphire blue in all other subspecies, and the legs are pale pinkish-brown to light greyish-blue with dull black feathering.[7][12] frontal view of tan brown bird with black head and pale streaking perched on mossy branch Juvenile in Mount Gede Pangrango National Park, West Java in August side view of brownish bird with black wing and yellow markings Juvenile in Sabah, Borneo in June Females are similar to males, but can be told apart by their lack of a neckband and greyer heads and underparts. Juveniles have pale brown heads, brown upper backs, dark brown wings, and black tails. They have a marked yellow supercilium (line above the eye) that widens towards the back of the neck to become a broken collar, and the ear-coverts have narrow yellow streaks. The upper back has irregular yellow spots and the back and rump are largely yellow. The wings have yellowish markings like those of adults. The throat is yellowish with pale dark streaks and is separated from the breast by a yellowish-white strip, the rest of the underparts being a pink-tinted yellow. The bill is orangish-brown. As juveniles age, t
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