“The dogs will need time to adjust to your home, your animals, your pack. It will not be instant, they may be distant at first or seem “aggressive” to other pets but give them time and be calm. The life of a Rescue dog is often terrifying and they only recover after an adopter opens up home and heart and gives them a chance to acclimate into their new home at their own speed. Some dogs take days, others take weeks, but sooner or later they all relax and learn to be loved. ” -Kate’s Trainer
There are many great reasons to add another canine family member: more to love, more to be loved by, companionship for Dog One, saving a life, companionship for a child and more. There are also many reasons not to: more vet bills, more food and toys to buy, more poop to scoop, less individual attention for Dog One, more potential behavior problems…
Assuming you’ve carefully considered the pros and cons and made an educated decision to adopt another, here are some tips for a successful introduction of your new dog to your existing canine pal(s):
1. Make sure Dog One is dog-friendly. If you don’t already know that One is the life of the dog park, find a friend with a very dog-friendly dog and introduce One to Friendly in a safely fenced neutral territory. One may tell you in no uncertain terms that he’d rather be an only dog. If so, consider maintaining your one-dog status. Or, if you’re dead-set on another dog, find a good, positive trainer/behavior consultant to help you convince One of the benefits of having a canine pal. If the introduction goes well, take the next step.
2. Select the right dog. If your current dog is very assertive, adding another “top dog” could be the equivalent of holding a lit match to an open gasoline can. Look for a dog who defers to your “Boss Dog.” However, if your current dog is a Wilting Willie, an assertive new dog may take over. Willie will probably be fine with this, but you may have a hard time seeing him pushed around. If so, look for a non-assertive dog.
Size needs to be taken into account. If you have a three-pound mini-dog, there are inherent risks in adopting a large-breed dog. Even in play, big dogs can cause serious, sometimes fatal, injuries to toy-size canines. It’s not impossible to have very disparate sizes in a household, but it requires committed supervision and management.
Grooming and energy levels are still other considerations. If Woolly Bully requires daily grooming to stay mat-free, perhaps a shorthaired dog is in order. Or, if you finish brushing Woolly and are eager for more, a second Old English Sheepdog may be right up your alley.
If your current Border Collie mix is an Energizer™ bunny, another active dog might help wear her out—or you could end up with two bunnies.
3. Script your introductions. Set up your introductions in that safely fenced neutral territory. This is best done prior to your commitment to adopt Dog Two. Both of you armed with hot dogs, have a friend, hold one leashed dog at the far side of the area while you enter with the second. Watch body language; they may become alert and a little tense, or act all waggy and playful—both are acceptable responses. If one or both dogs exhibit serious aggression—lunging, frenzied barking, snarling or snapping—stop the introduction and seek professional assistance.
When the dogs notice each other, calmly feed hot dog bits, until each is focusing on the person providing the treats. Now slow the rate of hot dogs until the dogs glance at each other, then look back at you for hot dogs. If both dogs appear happy and/or reasonably relaxed in each other’s presence, drop the leashes while still at a distance and allow them to greet each other. Leash restraint can sometimes cause otherwise compatible dogs to behave aggressively. Leave the leashes on for a few moments so you can safely separate the dogs if necessary. When it is clear that they are getting along, call them back and unclip the leashes so they can play without becoming entangled (which can also cause a fight!).
At home, introduce them again in your fenced yard, and, to minimize indoor stress, don’t bring them into the house until they’ve tired themselves out playing.
4. Train and manage for success. Installation of baby gates and tethers in strategic places can help keep the peace. When dogs are still getting to know each other, separate them when you’re not home. If there are food-bowl or feeding-station issues, feed the dogs far apart, perhaps in separate rooms or crates, to avoid confrontations. Make sure there are enough toys to go around, and ample beds located in low-traffic areas.