Little Harvest mouse?

Little harvest mouse?

Little harvest mouse
Be so careful where u play
Mr Morton the farmer
Is busy today

He is diligently making hay
Whilst the scorching sun shines
He will be treading on your toes
With his colossal combine

I am sure he will not see you
You are rather small
So please heed my advice
There is a cavity in the wall

Scurry, down along that furrow
Turn left and straight ahead
Now if you look on your right
There is a paddock with a shed

You will be made very welcome
There are two field mice living there
I have sent them a message
So they are happily aware

Hasten on your way
My tiny fearless mouse
Hurry, here comes the tractor
‘Happiness in your new house’