not been able to get out with airrifle due to the weather so iv been taking my 10 month old border terrier out at dusk to try her at flushing some bunnies and i cant believe how much shes improving these past few days! shes getting close to catching them which surprises me cause i doubted a border would posess the speed to do this, iv never owned a 'working dog' before so i admit to being very green but i enjoy reading posts on this site about all types of dogs. could anyone advise me on when she would be classed as fully grown and not a pup please?