Recognising birdsong– this is a good time of year to gradually learn, one at a time, before many birds start singing for territories and to attract a mate. The Great Tit has several calls, but the easiest is the loud two-note song you’ll hear now, often represented as ‘teacher-teacher’ but I think of as a tick- short down, longer up note. I found that learning one bird-song at a time really helps, and Great Tits are common to most areas so good as a start. Conditions: Chilly and grey, with some rain. Temperature: Max 3-Min 0C.