<I believe that sorrel and chestnut are two different things.> Genetically they are both a homozygous red horse with no modifiers. The terms are interchangable. <And I was taught to use ‘breeching’, not ‘britching’> I hear it both ways here. Depends on who you talk to. :o) Lewella Tembreull Platte Ridge Farm - Classic & Foundation Shetlands http://www.platteridgefarm.com