I scanned every page of this post and I am ashamed to say Im the first to mention this; go to your local shelter and adopt a dog.
That said, all our dogs have been good with the kids and birds. The best is our current beagle mix. However, beagles do run all day and bark for most of it. When at the shelter look for the dog that isnt jumping on the fence and barking and be wary of the ones that are hiding. The most important thing to make sure they work well with the birds is for the dog to know its role on day one. If it is to sleep outside most nights then it sleeps outside on the first night. Be sure it cant get into the coop, watch the dog like a hawk for the first few weeks and correct its behavior.
That said, all our dogs have been good with the kids and birds. The best is our current beagle mix. However, beagles do run all day and bark for most of it. When at the shelter look for the dog that isnt jumping on the fence and barking and be wary of the ones that are hiding. The most important thing to make sure they work well with the birds is for the dog to know its role on day one. If it is to sleep outside most nights then it sleeps outside on the first night. Be sure it cant get into the coop, watch the dog like a hawk for the first few weeks and correct its behavior.