Dicrurus lophorinusVieillot, 1817, was in the past been placed in monospecific Dissemurulus, or in Dissemuroides. May form a super species with D. paradiseus, often treated as conspecific, but differs in tail morphology and probably in voice. Molecular-genetic studies required in order to elucidate taxonomic status. Few inter grades with race ceylonicus of D. paradises formerly reported along border between wet and dry zones, but interbreeding not now possible, since suitable habitat no longer remains between the two ecological zones, now completely separated.
Distribution
The species can be found throughout Wet zone of South Western parts of Sri Lanka, from Deduru Oya to Walawe.
Identification
The Sri Lanka drongo has black plumage with a metallic blue or greenish-blue sheen. It has an arching, helmet-like crest, red eyes, and a deeply-forked tail. Both sexes are indistinguishable from each other.
Behavior
It is a forest bird as other drongos that can is confined to forest edges, plantations, and wooded gardens. Like most drongos, it feeds on insects from open perches. A superb mimic of the calls of other birds but always has a metallic sound.
Rasmussen, P.C., and J.C. Anderton. 2005. Birds of South Asia. The Ripley guide. Volume 2: attributes and status. Smithsonian Institution and Lynx Edicions, Washington D.C.
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