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Barred Warbler Sylvia nisoria L 16-17cm. Bulky, rather thick-billed warbler. Adult is easy to recognise but seldom seen here. Juvenile could be confused with Garden Warbler. Sexes are dissimilar. Adult male has blue-grey upperparts and pale underparts marked with dark bars. Note yellow eye, pale wingbars and pale tip to tail. Adult female is similar but duller. Juvenile has grey-brown upperparts and pale underparts washed buff on breast and flanks. Compared to Garden Warbler, note pale wingbars, subtle crescent-shaped barring on flanks and undertail coverts, pale brown eye and proportionately larger bill. Voice Utters a rattling tchrrrr alarm call. Status Rare passage migrant, mostly on E coast and in autumn.