137890 Wood Warbler Phylloscopus sibilatrix L 11-12cm. Colourful warbler with a distinctive song and precise habitat requirements. Sexes are similar. Adult and juvenile have olive-green upperparts, bright yellow throat and supercilium, and clean white underparts. Note dark eyestripe and pale pink legs. Voice Utters a sharp tsip call. Song (likened to a coin spinning on a plate) starts with ringing notes and accelerates to a silvery trill. Status Locally common summer visitor to mature woodlands with tall trees, limited ground cover and closed canopy; Sessile Oak woods in W and N are favoured, and Beech woods elsewhere.