lilac,

I saw this one PBS the other night and is one of the better documentaries that I have seen on wolves. It takes place in Canada’s Wood Buffalo National Park. The park is five times the size of Yellowstone and a good portion of it is shot from a helicopter and they follow the herds and the pack without disturbing them. One thing I did like is they didn't camp out and stay over the seasons but left and then came back, so the intrusion was not too bad. The scenery is magnificent. At the end of the show it said that all Nature programs are now online:

http://www.pbs.org/wnet/nature/episodes ... falo/8179/