Phylloscopus inornatus
The Yellow-browed Warbler (*Phylloscopus inornatus*) is a remarkably small and delicate passerine, measuring a mere 9-10 cm in length with a wingspan of 15-16 cm and weighing 5-8 grams. Its plumage is characterized by olive-green upperparts, pale whitish underparts, and crucially, two prominent yellowish wing-bars and a distinctive long, pale yellow supercilium, which are key identification features. Pale edges to its tertial feathers also stand out. There is no sexual dimorphism, and seasona...
Breeds in cool, moist taiga and boreal forests, particularly coniferous and mixed woodlands at various elevations, often near water. During winter, it favors broadleaf forests, scrub, and plantations in lowland and foothill areas.
Primarily insectivorous, feeding on a wide variety of small insects and their larvae, as well as spiders, typically obtained by active gleaning from foliage and occasional aerial hawking.
This active, diurnal warbler spends its days in constant motion, gleaning insects from leaves and twigs in the canopy and understory, sometimes performing short sallies to hawk prey in mid-air. Males establish and defend breeding territories with their distinctive high-pitched song and frequent c...
The Yellow-browed Warbler boasts an expansive breeding range across the Palearctic, stretching from the Ural Mountains eastward through Siberia, Mongolia, the Russian Far East, and northeastern China. It primarily nests in the vast taiga and boreal forest zones. During autumn, it undertakes a sig...
Least Concern
- Despite its incredibly small size, the Yellow-browed Warbler undertakes an epic migration journey from Siberia to Southeast Asia annually. - It is one of the most celebrated and anticipated vagrants in Western Europe, particularly the United Kingdom, where hundreds appear each autumn, far off c...