Ijima's Leaf-Warbler (Phylloscopus ijimae)

Other Names (World)
Ijima's Leaf-Warbler, Ijima's Warbler, Ijima's Willow-warbler, Izu Leaf-warbler, Ijima's Leaf Warbler

Family
Phylloscopidae (Leaf-warblers)

Size
10 - 12 cm

First Described (Guide)
(Stejneger, 1882)

Habitat
The canopy of deciduous, mixed and evergreen subtropical forests, tangled scrub, alder thickets and scrub around habitation. From sea-level - 930 m.

Range (Guide)

Japan (B), Philippines (NB), Taiwan (China) (NB).

Breeds Izu Is (off southern Honshu) and Nakano-shima (in Tokara Is, off southern Kyushu), in Japan. Non-breeding range poorly known; includes Ryukyu Is, possibly also Taiwan and northern Philippines.

Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is 2,500 - 9,999 (2010) and decreasing.

Status VU
Habitat loss, pesticides, agrochemicals, trapping, are the main threats.

For more information see BirdLife International Species Factsheet.

Voice
A mechanical 'swee-seww-swee-swee-swee', usually ending in 'chew'. Call is a louder 'twee'.

Xeno-Canto Sound Files (more (34)...)

Ijima's Leaf Warbler (Phylloscopus ijimae) [XC749104]
by id from Miyakejima--Tairo-ike, Japan (song)

Ijima's Leaf Warbler (Phylloscopus ijimae) [XC657454]
by Desmond Allen from Miyakejima, Tokyo, Japan (song)

Subspecies
No subspecies.

Morphology and voice suggest that this species' closest affinites are probably with Western Crowned Leaf-Warbler (Phylloscopus occipitalis). Was in the past sometimes considered to be a subspecies of Eastern Crowned Warbler (Phylloscopus coronatus), or a derivative island subspecies of Pale-legged Leaf-Warbler (Phylloscopus tenellipes), but nesting preferences, vocalizations and DNA all indicate that it is a separate species.

Similar Species
Arctic Warbler (Phylloscopus borealis) which is larger, stockier, has yellowish supercilium, cheeks and underparts.

References
See References.

Files:

More Information

BirdLife International

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