people across Britain – including you – are being invited to take an hour this weekend to sit, pen and paper in hand, counting birds. now in its thirtieth year, the RSPB’s Big Garden Birdwatch draws on observations from thousands of backyards, balconies and city parks to form an overall picture of bird numbers in the UK. a nice break from the winter gloom, it’s a good excuse to get outside and relax to the soothing sound of birdsong, like this Cetti’s Warbler sample from über-birders The Sound Approach
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