Great reed-warbler

Description

The thrush-sized warbler is one of the largest species of Old World warbler.It measures 16–21 cm (6.3–8.3 in) in length,25 to 30 cm (9.8 to 11.8 in) in wingspan and weighs 22 to 38 g (0.78 to 1.34 oz).The adult has unstreaked brown upperparts and dull buffish-white chin and underparts.The forehead is flattened,and the bill is strong and pointed.It looks very much like a giant Eurasian reed warbler (A.scirpaceus),but with a stronger supercilium. The sexes are identical,as with most old world warblers,but young birds are richer buff below. The warbler's song is very loud and far-carrying.The song's main phrase is a chattering and creaking carr-carr-cree-cree-cree-jet-jet,to which the whistles and vocal mimicry typical of marsh warblers are added.