Scotland- keeping hens in garden law

Hi there,

I was offered an allotment by my council but refused as they don't allow chickens.  I then days later discovered I could have and been protected by the law.  Allotment Act Scottish version.

I am fairly confident many years back to read something that gave Scottish council tenants the right to keep hens in the back garden provided they were not pets.  The basis being they were kept for eggs/meat.  Now proving they are not pets would be an uphill struggle for the state and I doubt very much they would pursue it due to cost!   But that is another question.

Question I would like to ask is-  Does anybody know what I could have read that provide a right for a Scottish council tenant to keep a few chickens?
Thank you.