Cats for rodent control, step by step
Interactive lesson: cats in the barn and feed store — how many and what kind, settling in, food and shelter, neutering, health and toxoplasmosis.
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The whole lesson as text
1. What a cat can do
The cat is the oldest and cheapest ally against mice on the holding.
- Quiet watch — A cat hunts mice in the barn, feed store, hayloft and loft, night and day. Its scent drives mice out of the building.
- How many cats — For a barn, feed store and hayloft, 1–3 neutered cats are enough. Keep at least one by the feed store.
- Rats: seal first — Adult rats are big and bite, so many cats avoid them. First seal the gaps, keep grain in metal bins and traps in tamper-proof boxes.
- No poison — Where a cat hunts, there's no rodent poison: a poisoned mouse poisons the cat too. For an infestation, call a licensed pest controller.
Why: It needs no electricity or poison, works at night and gets into corners no trap can reach. But one cat can't clear a barn full of spilt grain: it is a help, not a replacement for tidiness and closed containers.
- If there are more rodent signs every week, the problem is in sealing and food, not the cats.
- More than 4 cats is a sign that someone isn't neutering: the colony grows.
2. What kind of cat and where from
The best barn cat is one that learned to hunt from its mother.
- From a mother that hunts — Kittens from a barn or farm, 8–12 weeks old. They learn hunting from their mother.
- Two together — Ideally two from the same litter. They settle more easily and keep each other warm in winter.
- Semi-feral, neutered — Adult neutered semi-feral cats from rescues and trap-neuter-return schemes; Cats Protection and many US and Canadian shelters rehome barn cats. They can't live in a house, but are excellent in a barn; they often have an ear tip.
- The wildcat — The Scottish wildcat is bigger than a domestic tabby, with a thick tail with dark rings and a blunt black tip. It is critically endangered and protected by law: don't catch or feed it.
Why: An indoor cat that has never been outside finds it hard to adapt to the barn and hasn't learned to hunt. A kitten raised by a mother that hunts learns from her, and with you it bonds with the place.
- Kittens under 8 weeks without their mother don't thrive and don't learn to hunt.
- An unknown adult cat without a vet check may bring fleas and cat flu to the cats you already have.
3. Arrival and settling in · Locked
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4. Food and shelter · Locked
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5. Neutering and health · Locked
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6. Cats, stock and hygiene · Locked
Buy the Cats for rodent control module and you get the PDF to download and print, plus lifetime access to this interactive lesson: all 6 chapters, 24 steps.