Modern commercial poultry production for supermarkets and use in the fast food and restaurant industry relies heavily on two types of white feathered breeds of chicken the Cobb and the Ross or Ross Cobb.

These are breeds that have been developed in the US and NZ over the last 50 - 60 years with significant breeding efforts going in to creating a bird that grows quickly and converts food to mass efficiently.

They are feed machines and can grow so quickly that they have trouble carrying themselves around if they're not free ranging to develop muscle.

You either like these breeds or you don't.    I've not raised them so I can't comment on their characteristics as free range birds or their flavour but I'm going to have a go this season and will update this page when I have.