is a specific kind of: warbler.

is a broader term that covers: blackcap, Silvia atricapilla | Phylloscopus sibilatrix, wood warbler | Acrocephalus schoenobaenus, reedbird, sedge bird, sedge warbler, sedge wren | wren warbler | Orthotomus sutorius, tailorbird.

is a member of: family Sylviidae, Sylviidae.