i have a 9 month old springer and for the life of me i can't get her to retrieve. i throw the dummy and runs it down and won't pick it up, and runs back to me with out. i go to the dummy with her and open her mouthand pick it up but she won't do it on her own. the dummy i have is a dokkens ruffed grouse so not to big. need help hunting seson is almost here.