Brushwolf, recently I was told that Woolite Pet Stain Remover will clean up dried blood. Then a little Borax to finish off.
I keep forgetting to pick up this product when I'm in town, but will get some soon. I'll let you know how the Woolite preforms.
I put up some Fox & Coyotes that another guy caught and he skun. I have them dried and off the boards, but still have to get some dried blood off faces. I'll give the Pet Stain Remover Woolite a try on these.
On another note, these Canines were all cable caught. One pretty female Coyote's neck is damaged from cable. No guard hairs, in top neck area, with little under fur. I combed and combed, but can't make it look pretty. Darn shame for a big, prime Coyote. $30-$40 Coyote down to maybe $5. Other cabled pelts are fine.
Some have belly hair worn off between the back legs, which seems typical in cable caught fur. As animal pulls, lunges or circles about, the cable slides between their back legs as they change positions and shears/cuts off belly fur, leaving a bare spot or little belly fur.