Um you don't hunt the same animals year round.
I don't think people were so migratory. They changed what they hunted and gathered.
Geese migrate thousands of miles, they aren't going to be followed.
I'm sorry if I can't explain myself in English too good. I'll try a little better.
We live in groups, mainly close connected groups. So I hear do many other hunting people. If you stay in one place you are only going to catch all the game in that area. Then you have to move. You also get bored, well we do, with the same food.
Maybe Uk has lots of places where lots of people can go to catch fish, hunt deer, shoot/trap geese and whatever, without competition from others all time.
So for me if we need to get geese to eat I have to travel to an area of marshland about 80 miles away and a three days travel by foot and canoe. The area is only used briefly by the geese as they travel south and not north. This happens only once a year and lasts maybe week or maybe three. We like geese. Yes, sometimes they fly over where we live. But they fly very high and cannot be shot. On their early.spring grounds they can be. I use tent when I stay there and put up on a tiny island where it is dry. There are Moose there and they are easy to shoot but I cannot shoot them as it is very marshy because the place (magwattum'na'tsa) is under four or five feet of water and I can't skin or carry a moose in deep water or get it into the canoe.
So to find moose I must go to areas I know which has good moose grazing and is open enough to get a good shot and has shelter to hide from. Moose is heavy so I can only do this to get food to freeze or dry in winter when they is enough snow on ground for dogs and sledges. We go as a family - everyone goes, we travel in groups. One man cannot collect moose on his own. This maybe ten, twentymiles away or many days travel. Every year is different. Sometimes you not get lucky. So I hunt caribou if we are unlucky. Caribou can only be caught in the open with some rocks, small trees to hide behind, best near traditional crossing places in big rivers. Depending on which herd of caribou I go after we may have to travel for eight to ten days days to the north to best area again in small hunting clans. I must go where they go when they migrate NW/SE or NE/SW both herds travel differently and one will not come in forest anyway. There's no point going that far for one animal. So we stay for a few weeks waiting, waiting waiting for them to pass. We have small wood 'cabin' there made by my father, using axe and saw only.
We like fish too. The river and lakes next to where I live is full of fish. But they cannot be caught in numbers so I travel with a hunting partner when the summer run of salmon happens to a place on the river where it is shallow enough to catch lots. This is some days away. If nice weather we take families and have fun.
In winter - now, I set trap lines normally. These are for fur animals and they are difficult to catch. The area where most are varies from year to year and the government have only set places where you can go for conservation reasons. So we travel for several days and spend it in our winter camp which is semi permanent from logs and only can be used three or four winters.
So many times we travel and stay with families and stay in hut or cabin or big canvas/wood shelter we make. In the old times all this was done slowly and travel was harder because no one had skidoo, pick up or other modern stuff.
Maybe you are lucky in England and there was plenty of good places to hunt in old times all without having to go places to catch them. This could be possible but I don't know.
As for the programme 10,000bc What can I say?? We watched a programme in our hall. They appear to be given food. Spend all day sitting, eating, eating, and women have make up on. small shelters, Food has to be looked for!