Good to see it, George
Thank you for sharing the video.
It's community, it's about the group hunting food to bring home to those no longer able to do so themselves. It's keeping alive skills and that sense of working well with others to provide for the family, and bringing along the young men in their time.
It's sustainable, no one wants to see the bird population crash, and it's carefully monitored and recorded too.
I'm vegetarian, and I have no issues with this kind of hunting. To those who eat Guga it's good food, and it's only really considered a delicacy now because there are so few birds caught and preserved this way these days. It's very much part of the seasonal round of farming, fishing, wildfowling, etc.,
Bird hunts (look up St Kilda for instance) used to be the way to pay the rent on many islands. It's firmly rooted in the economy of the area as well as being a source of protein, etc., especially since it can be stored for use during really bad weather....check out the weather of the Western Isles before you start complaining.
M