Habitat:
Temperate forests, subtropical forests, montane woodlands

Activity period :
Primarily active during the day, with peak activity in the morning and late afternoon.

Identification and description:
The Hartert's Leaf Warbler, or Phylloscopus soror, is a small passerine bird belonging to the Phylloscopidae family. It is primarily found in the temperate and subtropical forests of East Asia, particularly in China and Vietnam. This warbler is characterized by its olive-green upperparts and lighter underparts, with pale eyebrows and a subtle wing bar. It is often mistaken for other warbler species due to its similar size and inconspicuous plumage. Its song is a rapid and melodious trill, often heard before the bird is visually spotted. It primarily feeds on insects, which it catches in dense foliage.

Recommended lens:
400mm – adjust based on distance, desired framing (portrait or habitat), and approach conditions.

Photography tips:
To photograph the Hartert's Leaf Warbler, it is advisable to use a 400mm lens or longer to capture precise details without disturbing the bird. Look for it in temperate or subtropical forests, especially in montane woodlands. Be patient and discreet, as this bird is suspicious and often hides in dense foliage. Listen for its distinctive song to locate it more easily. Early morning hours are preferable to take advantage of soft light and increased bird activity.