We only rent from May until October, so its seasonal. My friend was on a livery yard, and she had to move the horse off for one day a year, so that she did not have a tenancy, but not sure how it works nowadays, because I have never heard of anyone else having to move off for a day.
An old lady in our village rented her land out for years to a farmer. When she wanted to sell the farm, he was a sitting tenant, because he had been on for so long, so she had to sell the farm with him still on the land, which reduced the price I imagine.
I would get a written contract, so you both know where you stand. I am not sure about getting him off in two days, but if he says thats all he needs, fair enough. I was thinking perhaps you could arrange a mutual timescale, like a month maybe, for him to leave. I would also mention in the contract that he is respnsible for fencing his birds in properly etc.
I have never had any trouble with the farmer renting our land, and I will miss him now he is not coming back - and his cows!