Off and on, I’ve been watching the interplay between predator and prey on this place for 65 year. In 1960, and through the mid-seventies, the hay field had a serious gopher (Columbia Ground Squirrel) population. A lot of the farm activities fell in my realm as I entered the teenage years – I recall poisoning the critters, first with strychnine, then with compound 1080. My most memorable year was the year when I caught a badger in a gopher trap. I saw she was a lactating female, worked the trap loose, cleaned all the traps from the field, and was surprised as hell the next day when she showed up to hunt gophers with me. The partnership lasted maybe six weeks – but is a memory to revisit – she had decided that gopher hunting could be a lot more successful when I assisted with the 22.
Thirty years later – around 2000 – the gopher population dropped. With less grazing on the field, natural predators – a few weasels – were driving the gophers out. Apparently the gophers were more vulnerable to weasel predation than the voles were. Sam and I shot few ground squirrels in 2004 and 2005 when we visited my parents – the weasels controlled the population well over about 15 acres.
By 2008, a feral cat population began growing in the trailer court a quarte-mile away. By 2017, I saw my last little weasel – feral cats were now the predator, controlling weasels, ground squirrels, and voles.
So now, cats – whether feral or housecat – have became the prey species. When we built the house, we had a resident pair of coyotes that caused us no problems. They’re gone now – hopefully painlessly after living lives that caused us no problems. With the resident coyotes gone, three packs are edging into our place – the game cameras show one pack from the west, one from the north, and a third from the southeast. One pack has coyotes that specialize in hunting cats – the game cameras have shown coyotes walking down the trail with a cat in the mouth.
Over time predators and prey roles can change. But you have to live quite a long life attached to the same piece of ground to notice it.
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