Well, I have a small Chiweenie and a few small dog visitors that sometimes sniffed, approached, or chased the chickens as chicks and now as adults. Although my dog is now getting what she deserved, seeing how the chickens outgrew her. Whenever she tries to sniff the hens, one of my Barred Rocks will puff up and jump at her.
I also have a chiweenie. Love my girl! When I first acquired my chicks (who are only a few months old now), we kept them in a small animal cage in the living room. My dog was fascinated and watched them all day long. Now that they are outside, she paces around their pen. I have seen her go bonkers chasing squirrels and freak out over my mom's guinea pigs, so I was worried. But now my chicks are taller than the dog. They do not put up with her guff! If she gets close, they put her in her place with a quick sqwak or by puffing up. My Barred Rock will actually chase her. It is hilarious! My doggie doesn't mess with them at all anymore, and the chicks hardly notice her when free ranging.
I think being raised next to her, they got used to her and seem to treat her like she's one of the flock. And believe me - she is NOT at the top of the pecking order! I really didn't have to train her. My BR did that for me! LOL!
I think a slow introduction would be good. And exposing them to your dogs often and in a safe, controlled way sounds like a good idea. I was worried, too, but I haven't experienced any problems, and my dog is kind of a spaz. Your dogs sound much better behaved, much smarter, and you sound like you have a better handle on them than I do on mine. You got this!
