Most of us are used to seeing cows grazing in the fields as we travel about the country. But where do they go at night? Or when it's too cold? For the great majority of British dairy farmers, cows graze outdoors during the summer and stay under cover in large comfortable barns for about half the year, when it is wet and cold and the grass is not growing. Some dairy cows stay indoors throughout the year.

Most of us are used to seeing cows grazing in the fields as we travel about the country. But where do they go at night? Or when it's too cold? For the great majority of British dairy farmers, cows graze outdoors during the summer and stay under cover in large comfortable barns for about half the year, when it is wet and cold and the grass is not growing. Some dairy cows stay indoors throughout the year.