Hmmm, if the kitten is a calico, then it's most likely a female
I hope that you can tame her soon, and that she continues to be protected by Hercules. If you can tame her, will you be keeping her?
I had a German Shep/Husky mix that helped me raise kittens. When I placed 2 of her first "litter", the dog became very protective of her remaining kittens, and I just couldn't bear to take them from her. Her "son" Cubby has outlived the dog by 4 years now; fortunately, my dad got a Wolf/Ger.Shep who is the spittin' image and personality of Tasha, and Cubby is convinced that Shiloh is his "mom" come back again. Shiloh is also very protective of her cats; they are allowed outside in the evening for supervised play in the fenced yard; if you're not family, don't dare approach if the cats are outside.
As for my other dog, Tasha, well, I am sure that she is happily on guard duty over RB, watching over our TCS cats who have passed.