Phylloscopus ijimae
Ijima's Leaf Warbler (Phylloscopus ijimae) is a diminutive and engaging passerine, typically measuring 11-12.5 cm in length and weighing a mere 7-11 grams. Its plumage features olive-green upperparts and a yellowish-white to pale yellow underside, providing camouflage within its arboreal habitat. Distinctive field marks include a prominent, bright yellow supercilium, a dark eye-stripe, and relatively dark, slender legs, often appearing blackish. Taxonomically, it belongs to the Old World leaf...
Primarily inhabits broadleaf deciduous and evergreen forests, woodlands, and coastal scrub, often at lower to mid-elevations on islands, typically below 600 meters.
Feeds almost exclusively on small insects and their larvae, primarily gleaned from foliage and branches, supplemented by occasional aerial captures.
Ijima's Leaf Warblers are highly active, diurnal insectivores, constantly flitting through the canopy and understory in search of prey. Their foraging strategy involves gleaning insects and larvae from leaves and small branches, occasionally performing short sallying flights to catch aerial prey....
Ijima's Leaf Warbler exhibits a restricted and disjunct distribution primarily within the Japanese archipelago. Its breeding range is confined almost exclusively to the northern Izu Islands, particularly Toshima, Niijima, Shikinejima, and Kouzushima, off the Pacific coast of Honshu. During the no...
Vulnerable
- This warbler is named after Isao Ijima, a renowned Japanese zoologist who first described it in 1892. - It is an island endemic, breeding exclusively on a small chain of islands off the Pacific coast of Japan, making it particularly vulnerable to local environmental changes. - Despite its small...