Genus Tesia
The tesias are a genus, Tesia, of Old World warbler. Though once included in the large family Sylviidae, more recent research placed it within a new family, Cettiidae.[2] The four species inhabit undergrowth of montane forest in South and Southeast Asia, where they are resident or short-range migrants. They have longish legs and appear tailless, with (seemingly) only 8 rectrices.[3] Their simple songs are fairly loud, and their nests are typically ball-shaped. Their name is derived from Tisi, the Nepalese name for the grey-bellied tesia (Tesia cyaniventer).[3]
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Is part of: Acrocephalinae: Wikipedia
4 related taxa: