Two black merle border collie dogs on white background Stock Photo - Alamy
Border Collie Black Merle fumetto' Adesivo | Spreadshirt
3-Blue Merle - Currently there are two different "genetic" versions of the Blue Merle. The dog that is ge… | Border collie blue merle, Blue merle, Border collie dog
179 foto e immagini di Border Collie Merle - Getty Images
Blue Merle Border Collie" Immagini - Sfoglia 80 foto, vettoriali e video Stock | Adobe Stock