This week, I met with Martin Austwick, host of the Song by Song Podcast, for a bird walk in London’s Regent’s Park. Martin describes himself as a casual birder, and we had a lovely stroll around the park, just noticing the birds that were around. Along the way I heard about some of the birds that Martin has seen on his travels around the world.    Do listen to Martin’s show at  SongBySongPodcast.com  and Helen's show The Allusionist  Follow Martin on Twitter @martinaustwick or  @SongbysongPod and on Facebook @ SongBySongShow   Birds seen on our walk: Greylag Goose Canada Goose Coot Black-Headed Gull Lesser Black-backed Gull Carrion Crow Grey Heron Feral Pigeon Mute Swan Moorhen Egyptian Goose Herring Gull Cormorants Magpie Tufted Duck Wood Pigeon Long-Tailed Tits Great Tit Blue Tit Eider Ross’ Goose   The Casual Birder Podcast Don't miss an episode - subscribe to the show (Subscribing is free) Follow me on - Twitter: @CasualBirderPod Instagram: @CasualBirderPodcast or join the Facebook group at bit.ly/CasualBirderFB