It took me a LONG time, much diligent training and careful management to teach my Kelpie mix Vinnie not to chase my cat Ted, and to get a tug toy instead when he gets the cat-chasing urge. We enjoyed a lengthy stretch of peace at home; dog and cat could both chill out in the same room in close proximity to one another without problems.

Vin Settled With Ted Nearby

I was overjoyed. There’s almost nothing I like better than the company of both my critters at the same time. And the dog-cat harmony at home was no small achievement. Vinnie is a herding mix with high energy and an intense desire to herd moving critters.

But that was then.

Lately Vinnie starts whining in frustration and his eyes light up in that, “I’m dying to chase you now!” way whenever he sees Ted. Vinnie has also taken to following Ted so closely, he’s practically standing on top of him. Ted is not amused.

At first I was puzzled about the change in Vin’s behavior. Then I remembered that of late, our garden has been overrun with feral cats. There always seems to be at least one feral kitty lurking in the shadows. (I don’t leave food or garbage out there. A well-meaning neighbor has been feeding the ferals daily and ever since, the surrounding yards have become a feline playground.)

No wonder Vin’s interest in Ted has revived. Vinnie’s had plenty of recent opportunity to chase the feral cats outside. And chase them he does!

For Vinnie, chasing cats is a self-reinforcing behavior. Chasing cats is tons of fun for him. He’s rewarded powerfully whenever he does it; chasing and herding cats must feel incredible to him. Herding is after all, what he’s hard-wired to do.

Animals aren’t static entities or robots. They’re living organic creatures who respond and react to their environments. In other words,behavior changes. It can change for a host reasons such as an illness, a health problem, or as a result of natural development and maturing (transitions from puppyhood to adolescence to adulthood to the golden years).

Ted

Behavior can also change as a result of environmental factors. These run the gamut and include changes in diet, in amounts and types of exercise and mental stimulation, in life routines, a move to a new home, the addition of a new pet or family member, or the death of a loved one to name a few.

Vinnie’s in perfect health and the only recent change in his life has been the feral festival in our yard and the many opportunities he’s seized to chase those cats. Behavior that’s rewarded increases in intensity and frequency. The more Vinnie chases cats — a rewarding behavior to him — the more he wants to chase cats, and the more he wants to chase cats, the more he chases them. This explains his changed behavior and attitude towards Ted.

One of my instructors at the SF-SPCA Academy for Dog Trainers always said, “If you want the animal to change its behavior, change your behavior.” So true.

If I want to curb Vinnie’s desire to chase Ted, I need to change my behavior. Relying on my pre-feral cat training plan won’t suffice. I need to manage the environment to prevent Vin from chasing the outdoor kitties.

I can’t block them from my yard and it doesn’t seem fair to suspend Vin’s yard privileges. My management plan is to go outside and get any feral cats to skedaddle before Vinnie is allowed into the yard. I also need to ramp up the training – more recall and leave it practice away from Ted, lots of practice calling Vinnie to come inside from the back yard, and stupendous rewards for those behaviors.

If your dog’s behavior has changed suddenly and it’s not to your liking, try to figure out what may have caused the change. If it’s not due to maturing, rule out any physical problems with a vet exam.

If there are no health issues, consider whether there have been any changes in your dog’s life or routine. If he’s been getting less physical or mental exercise, increase it. If the environment has changed, depending on what’s changed and how intensely it’s affected your dog, he may just need some time to adjust.

If you’re concerned and/or your dog’s behavior doesn’t improve, it’s best not to let the undesirable behavior continue as it will most likely worsen.

Do your best to prevent your dog from doing the behavior and consult with a good positive reinforcement trainer. Deciphering behavior puzzles and crafting a plan to address them is what dog trainer geeks like me relish.