Japanese Pygmy Woodpecker

Fascinating facts about the Japanese Pygmy Woodpecker

• At just 13–15 cm long, this woodpecker delivers a quick drum on tree trunks, showing how tiny size doesn’t stop it from joining the woodpecker chorus.
• The male’s tiny red patch on the nape is the only splash of colour, while the female’s beak, wings and tail are noticeably longer, a subtle sexual dimorphism that helps researchers tell the sexes apart in the field.
• In the mountains of Japan it nests up to 2,100 m (6,900 ft) above sea level, carving a nest hole in a dead branch where it lays five to seven eggs each about 19 mm by 15 mm, then incubates them for 12–14 days before the chicks fledge three weeks later.
• Its diet is a mixed bag of spiders, caterpillars, ants, aphids and berries, and it often joins mixed-species foraging flocks, turning ordinary forest canopies into bustling street markets of insects.
• First described by Temminck in 1836, this bird now spans ten recognized subspecies from Siberia to the Ryukyu Islands, each slightly darker and smaller toward the south, illustrating how geography can fine-tune a species’ appearance.

At a glance

About the Japanese Pygmy Woodpecker

The Japanese pygmy woodpecker, Yungipicus kizuki, is a diminutive marvel of the forest, measuring just 13–15 cm (5.1–5.9 in) in length. Its crown is a muted grey-brown, framed by a striking white supercilium that sweeps from above the eye down the neck and breast. Brown ear coverts, a white moustachial stripe, and a grey-brown malar line give the face a finely patterned mask, while the chin and throat are pure white. The mantle and back are dark brown, punctuated by crisp white bars, and the wings and tail sport a blend of brownish-black with contrasting white edging on the outer tail feathers. Males bear a subtle red patch on the side of the nape, a detail absent in females, whose beak, wings, and tail are proportionally longer. A chestnut iris and blackish beak complete the picture, and the bird’s high "tsi-tsi-tsi" call and quick drum echo through the mixed coniferous-deciduous woodlands it inhabits. Across Korea, northeastern China, southeastern Siberia, Sakhalin, Japan, and the Ryukyu Islands, this woodpecker thrives from lowland groves to upland and riverine forests up to 2,100 m (6,900 ft). It forages in pairs or joins mixed-species flocks, probing bark for spiders, caterpillars, ants, aphids, and occasionally berries. Breeding commences in March in southern Japan and later in May in the north, with a nest excavated in a dead branch. The clutch of five to seven white eggs, about 19 mm by 15 mm, incubates for 12–14 days, and fledglings leave the nest after roughly three weeks, continuing the cycle of this agile, bark-drumming specialist.

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