Oh my goodness, I love that pic! She's more interested in the food then the chickens! I love her color too, very pretty.
My dog Nikki is a two year Heeler/Border Collie/McNabb mix. I raised her around the chickens just like you are doing, they very quickly became old news to her. She has never touched a chicken. She knew from day one that they are my chickens and that she is not to bother them. It's just constant reinforcement of good behavior and never leaving pup alone with chickens. These Border Collie mixes are great dogs in my opinion, they are EXTREMELY smart dogs. They want to know what you want from them and they want to do it. It's true that they are a go all day dog and then go some more after dinner! Mine is a ranch dog and I have yet to see her tired!
Good luck with your new girl, I think you are on the right track with her.
Then spent the whole night puking in her kennel, probably b/c she ate the entire inside of the bird, intestines and all, plus both breasts. And the feathers. Anyway, my point is, don't trust your pup till she's an adult. Puppies just can't help themselves sometimes. My pup knows it's wrong and tried really hard to stop chasing/herding when we tell her to, but she quivers until she can't stand it anymore and then chases. I know the herding instinct isn't going to go away, but I'm hoping she can control the killing urge when she's older. She's still a baby. And it's totally our fault when she gets out unattended. If my kids would only learn to close the darn door behind them!