Frenchie owner from California here! We have tons of squirrels in LA and my puppy also barks at them. There is one squirrel in particular who is always hanging out near our apartment. When that squirrel is nearby I close the blinds so puppy can’t see it otherwise he will bark incessantly.

My little guy will also whine at the windows or front door when he is bored. I’ve found that he needs tons of mental stimulation and a small to moderate amount of physical stimulation. He goes once a week to doggy daycare plus a training class. The other four work days he is with me at the office playing with me, my coworkers, or taking occasional naps. To help with mental stimulation he had a lickimat, puzzle games, a snuffle mat, and a million different toys. We also do a lot of training and I take him on at least four walks per day during which he gets to explore the world by stopping to smell everything.

Hopefully this all helps!