Hi,
I don't know about puppies, but our rescue cocker Tia was despirate to chase squirrels when we first got her, and I was worried about our two rabbits who live outside, but run free all day.
We introduced her slowly, and on the day she got past me she only wanted to pinch their food.
Once she realised they were part of the family, she has been OK - so far so good.
Good luck,