Earthflight - Season 1 - Eps 1: North America
Take off in a ‘snowstorm’ of geese and glide under San Francisco’s Golden Gate Bridge with pelicans. This is the world on the wing – a world with secrets known only to the birds. The countdown to Earthflight’s epic adventure begins in the Gulf of Mexico as five million snow geese prepare to fly the entire length of North America. Each spring, these families of geese head north on a gruelling 3,000-mile journey to the Arctic to breed.
About Earthflight

Title: Earthflight
First Air Date: 2011-12-29
Last Air Date: 2012-01-29
Status: Ended
Rating: 5.2/10 (from 5 votes)
Language: EN
Seasons: 1
Total Episodes: 6
Network: BBC One
Genres: Documentary
Production Companies: BBC
Synopsis
Earthflight is a British nature documentary that shows a flight from the view of the wings of birds across six continents, showing some of the world's greatest natural spectacles from a bird's-eye view. it was created by the BBC and the first episode, narrated by David Tennant, aired on BBC One on 29 December 2011. A two-hour subset of Earthflight was aired in October 2012 by the Discovery Channel in the US as Winged Planet. The entire first series aired on PBS, beginning in September 2013, under the title Earthflight, A Nature Special Presentation.
Cast

David Tennant