What Breeds Are My Dogs?

I have four dogs each an unwanted puppy. We have so many theories, but just for fun want to see what others think.

Miakoda black female about two years old. We think she's Black Lab and Aussie Shepherd, or Black Lab and Border Collie mix.

Tegra brown female about 1 1/2 years old. We think Chocolate Lab and Pit Bull mix.

Thor black male 1 1/2 years old. We think Black Lab and Pit Bull mix, or Black Lab and Mastiff mix. We were told he was Black Lab and Blue Heeler.

Our newest one is Max black and brown male 5 months old. Think he's Rottie and German Shepherd. That's what we were also told. Could he have wolf?

By Shelly