Planet Earth - Season 1 - Eps 7: Great Plains
This episode deals with savanna, steppe, tundra, prairie, and looks at the importance and resilience of grasses in such treeless ecosystems. Their vast expanses contain the largest concentration of animal life. Over Africa's savanna, a swarm of 1.5 billion red-billed queleas are caught on camera, the largest flock of birds ever depicted.
About Planet Earth

Title: Planet Earth
First Air Date: 2006-03-05
Last Air Date: 2006-12-10
Status: Ended
Rating: 8.584/10 (from 1109 votes)
Language: EN
Seasons: 2
Total Episodes: 11
Network: BBC One
Genres: Documentary
Production Companies: BBC, NHK, Discovery
Synopsis
David Attenborough celebrates the amazing variety of the natural world in this epic documentary series, filmed over four years across 64 different countries.
Cast

David Attenborough
Self - Narrator