New Scientist New Scientist London New Scientist’s tracks Birdsong quiz 1 by New Scientist published on 2021-08-24T11:01:14Z Birdsong quiz 2 by New Scientist published on 2021-08-24T11:01:13Z Birdsong quiz 3 by New Scientist published on 2021-08-24T11:01:13Z Birdsong quiz 4 by New Scientist published on 2021-08-24T11:01:12Z Birdsong quiz 5 by New Scientist published on 2021-08-24T11:01:12Z Birdsong quiz 6 by New Scientist published on 2021-08-24T11:01:11Z Birdsong quiz 7 by New Scientist published on 2021-08-24T11:01:10Z Birdsong quiz 8 by New Scientist published on 2021-08-24T11:01:10Z Birdsong quiz 9 by New Scientist published on 2021-08-24T11:01:09Z Birdsong quiz 10 by New Scientist published on 2021-08-24T11:01:09Z