That takes either flat out knowledge of brands or near criminal investigation
I found out about my mare by identifying her brand.
Luckily the CA brand book is online and free.
Google "livestock brands". All kinds of things come up. Helps if you know where she comes from, tho.
My mare wasn't branded by her breeder. Her second owner did it and had all records. That way I got her registration number and eventually her pedigree Posted via Mobile Device