This is a must to have a look at

Budgerigars flying past Uluru and swarming (Narrated by David Tennant)

Duration: 01:56

Budgerigars flying past Uluru and flock into super swarms. Earthflight uses many different filming techniques to create the experience of flying with birds as they encounter some of the greatest natural events on the planet.

Credits

Series Producer John Downer

Narrator David Tennant

Composer Will Gregory

Composer Steven Faux

This is the link http://www.bbc.co.uk/programmes/p00nlylw