>>I watched some of this last night. Its a BBC nature programme and it showed whales catching herrings using bubble nets (never heard of this before)
>>
>>http://www.alaskawhalefoundation.org/education/bubble_net/bubble_net_feeding.html
>>
>>Absolutely stunning TV
>
>Wasn't it! When they were filming the herring bait ball being attacked from above and below by the birds, then suddenly, without warning or comment, the huge humpback whale mouth shot in from the side, took nearly all of it, and the whale went "Thanks for bringing them all together for me, chaps (BURP)" and off it popped.
>
>Have seen footage of that whale form of corralling and fishing before - probably on one of the other David Attenborough major prod's - probably teh one on the Oceans a few years ago (The Big Blue?)

Yes I had to rewind and watch it again when the whale just appeared and ate everything. I imagine a few seagulls went in as well