my lab puppy is 5 months old she picks the dumb up in the garden but when i go to the park with her she disnt bother with the dumby when i throw it she runs to it and then sniff the ground and disnt bother with it . is there somthing im doing wrong ,her recall is good she is good on the lead and off she sits and stays , how do i make it fun for her or is it cause its new to her i have had her at the park a few times but this was the first time with the dumby this is my first gun dog any help would be good thanks ally