[quote1240107441=Caoserradaestrela] Unlike the Pyrenean or the Marrema, the Estrela was never used only as a LGD.[/quote1240107441][size=12]It is very difficult to find any breed that was used for only one function. Their grouping is primarily based on their main purpose - the reason they were developed. You will find great similarities of structure and temperament accross all the LGDs because guarding livestock was their primary function. [/size]