Hello everyone,
I adopted a Collie X puppy about 15 months ago, quite a sad start so wasn’t sure how she might be but she’s been amazing 
She’s 18 months now and walked for at least 2 or 3 hours a day, we live very rurally so she’s able to meander around outside most of the day too. She’s very well behaved and calm with an easy temperament so I think she’s tired out enough on a daily basis (collapses with (on!) me every evening).
My worry though is that she seems so bright I’m starting to think that she might not be getting enough ‘mental’ stimulation. The reason for this is she’s recently become almost obsessed with her ball, she just wants it thrown for her all day, now has it everywhere with her, and it dominates everything. She’s not even that keen on walks if we don’t have it with us.
Of course I took her to puppy classes, she’s now well trained and always capable and eager to be learning new tricks. That bit’s fine. I wanted to take her to agility classes but obviously that’s been delayed for now.
Really I’m asking for any new games that might excite her. I’ve tried a snuffle blanket, hiding treats under cups etc, but she’s just not that interested. She’s quite likes hide and seek with us but nothing can compete with the ball for long.
Is this just a young dog phase (she seems content enough!) or should I be doing more? If so, what?
TIA 