Except that most hunter-gatherers aren’t big game hunters following migrating ungulates.
The idea that HGs were total nomads following herds of migrating ungulates is completely misguided. Most of their food actually came/comes from gathered plants. When hunting they’re more likely to bag a squirrel or rabbit than a bison or giraffe. Hunter gatherers have a home range…they might have a summer camp for hunting migrating caribou, a fall camp for gathering berries, and a winter camp for fishing. Pregnant women and infants and elders have to be taken care of.
Hunter-gatherers CAN store food, just not easily. Meat and fish can be dried/smoked. Fish can be buried in covered pits and fermented. Fruit can be dried. And so on. Any way that farmers of pastoralists can preserve food can be done by HGs, with two exceptions which pretty much define the difference between HGs and farmers and pastoralists. Pastoralists and farmers can keep food animals around for later milking or blood drawing or slaughter, “preserving” meat in a live state. And farmers can store large amounts of grain for months. Hunter-gatherers can even store grain/seeds too, but they’re going to have far less of it to start with since it all has to be gathered wild. But every type of grain cultivated by farmers started off as a wild plant that was gathered by hunter-gatherers.
Think for a minute about the lifestyle of the Eskimos of 100 years ago. Totally hunter-gatherer, absolutely no agriculture, the only domestic animal was the dog. Yet they have permanent semi-subterranean houses (although not used year-round), territory, large multiperson skin boats for hunting whales and walrus, they preserved food…smoked salmon, dried meat, meat preserved by freezing, fish preserved by fermentation in pits, berries and fish eggs preserved in seal oil. And they had leisure time for art, handcrafted clothing, beads, masks, etc. They weren’t moving every day following caribou herds, although they hunted caribou, the women mostly stayed at the camp while the men went out after the caribou, and they didn’t follow the caribou year-round, they hunted caribou when the caribou migrated into their home territory and stopped when the caribou left.
And people mostly didn’t starve as long as it was a good year. If it’s a good year there’s enough food for everybody. It’s when you have a bad year…the salmon run fails, the seals don’t come, or whatever…then people start to starve, then babies die when the mother’s milk dries up, then the sick and the old don’t get much food, then people go over to the other band’s territory and kill them to try to take their food. Life as a hunter-gatherer CAN’T be lived on the edge of starvation every day, because if the food fails for a week or two you’re dead, or at least too weak to hunt and gather more food. As a hunter-gatherer, most of the time there’s got to be plenty of food, otherwise you can’t live. Your carrying capacity is set not by an average year, but by the worst year in 10.
Farmers though are often on the edge of starvation…they’ve got X amount of grain that has to last them to the next grain harvest. But they can portion it out even if it isn’t much and hang on.