Male | colour white-black (collar black) Male | colour white-black (collar black) Male | colour white-black (collar black) Male | colour white-liver (collar dark blue) Male | colour white-liver (collar dark blue) Male | colour white-liver (collar dark blue) Male | colour white-black (collar gray) Male | colour white-black (collar gray) Male | colour white-black (collar gray) Male | colour white-liver (collar yellow) Male | colour white-liver (collar yellow) Male | colour white-liver (collar yellow) Male | colour white-liver (collar light blue) Male | colour white-liver (collar light blue) Male | colour white-liver (collar light blue) Male | colour white-liver (collar light green) Male | colour white-liver (collar light green) Male | colour white-liver (collar light green) Female | colour white-black (collar red) Female | colour white-black (collar red) Female | colour white-black (collar red) Female | colour white-black (collar red) Female | colour white-black (collar red) Female | colour white-black (collar pink) Female | colour white-black (collar pink) Female | colour white-black (collar pink) Female | colour white-black (collar pink) Female | colour white-black (collar purple) Female | colour white-black (collar purple) Female | colour white-black (collar purple)