This particular programme about Cuckoos was repeated last Saturday, and it was very good - a worthy watch
http://www.bbc.co.uk/iplayer/episode/b00gmxl7/natural-world-20082009-7-cuckoo#group=b006qnnh
Original thread is here
http://www.birdforum.net/showthread.php?t=130715&highlight=cuckoos
http://www.bbc.co.uk/iplayer/episode/b00gmxl7/natural-world-20082009-7-cuckoo#group=b006qnnh
Original thread is here
http://www.birdforum.net/showthread.php?t=130715&highlight=cuckoos