I know everyone thinks the Chiffchaff (Phylloscopus collybita) calls its own name ‘chiff chaff, chiff chaff’ or, sometimes, ‘chaff chiff, chaff chiff’. I beg to differ. A lot of the birds I listen to are actually saying ‘did you? did you? you, you, did you?’ and some of them are even in to martial arts, calling ‘ju-jitsu, ju-jitsu, you, ju-jitsu’. Listen closely next time you hear one and let me know what you think they’re saying.