136231 Lesser Whitethroat Sylvia curruca L 12-13cm. Small, rather short-tailed warbler with retiring habits but distinctive song. Sexes are similar. Adult and juvenile have blue-grey crown, dark mask and grey-brown back and wings. Underparts are pale, whitish on throat but washed pale buff on flanks. Has dark legs, dark-tipped grey bill and pale iris. Voice Utters a harsh chek alarm call. Song is a tuneless rattle, sung on one note, usually preceded by short warbling phrase. Status Fairly common summer visitor, mostly to S and SE England. Favours areas scrub and hedgerows with dense Hawthorn and Blackthorn.