So birds can fly, and as result they have spread themselves every corner of the world. And yet, despite this fact, very few individual species have managed to find a way to conquer the world on their own. Well, nearly none, because there are five birds, just five that have found their way onto every continent. These birds, the cosmopolitan birds make up an exclusive club. Join me in this episode to meet the five birds that have spread themselves around the world. Find out how they did, and why so few birds have managed the trick. To support Bird of the Week and gain access to our second podcast, What's up with that's Bird's Name? click on through to Patreon: www.patreon.com/birdoftheweek Want birds in your inbox? Drop me a line at [email protected] and I'll hook you up with a free weekly bird. Notes:  Biogeographic Realms: https://www.youtube.com/watch?v=W94Rth-aIkc&t=1164s&ab_channel=AtlasProPeregrine Falcon: https://ebird.org/species/perfal?siteLanguage=en_AUMigration: https://www.buzzsprout.com/1733312/9834248-the-heck-s-migration Osprey: https://ebird.org/species/osprey?siteLanguage=en_AUGlossy Ibis: https://ebird.org/species/gloibi?siteLanguage=en_AUCattle Egret: https://ebird.org/species/categr/Barn Owl: https://ebird.org/species/brnowlOwls: How Gives a Hoot?: https://www.buzzsprout.com/1733312/11822647-owls-who-gives-a-hootSpeciation: https://en.wikipedia.org/wiki/Speciation