This video is called Barn Swallows Drinking on the Wing (Narrated by David Tennant) – Earthflight – BBC One.
From the BTO Bird Ringing “Demog Blog” in Britain:
04 July 2012
10 Millionth Milestone continued…
This female Swallow was ringed on 16 April 2011 in Malta, while on passage and was later caught by another ringer in Raby, Czech Republic on 19 Jun 2011. She would have then travelled to South Africa for the winter, and we have just heard that this bird is now back at her breeding site in the Czech Republic!
Current reports of Swallow breeding success in the UK have not been good so far this year. Growth of chicks has been slower than normal and some failed attempts have been reported, especially during the wet and stormy weather. Hopefully the latter half of summer will be more benificial to Swallows.