Leaf-warbler (family)

Phylloscopidae is a newly described family of small insectivorous birds formerly placed in the Old World warbler family Sylviidae. Phylloscopidae contains two genera, the leaf warblers and Seicercus, together containing around 66 species.

Description
The species are of various sizes, often green-plumaged above and yellow below, or more subdued with greyish-green to greyish-brown colours, varying little or not at all with the seasons. The tails are not very long and contain 12 feathers (unlike the similar Abroscopus species, which have 10 tail feathers). Many species are more easily identified by their distinctive songs than their dull plumage.

Distribution and habitat
Its members occur in Eurasia, ranging into Wallacea and Africa with one species, the Arctic warbler, breeding as far east as Alaska). Many of the species breed at temperate and high latitudes in Eurasia and migrate substantial distances to winter in southeastern Asia, India, or Africa. One example is Tickell's leaf warbler, which breeds in scrub at high elevation in the Himalayas and on the Tibetan Plateau and then moves down-slope and south to winter in the Himalayan foothills of India and Burma. Most live in forest and scrub and many are canopy or sub-canopy dwellers.

Behavior and ecology
The family Phylloscopidae comprises many small tree-loving warbler species and feed by gleaning insects from leaves or catching food on the wing.