training a dog to be good with a bird?

[Kutay]

my sister is getting a k.c spaniel puppy tomorrow(i tried to tell her to get a rescue dog but she's heartless) anyways shes getting a k.c spaniel and its going to be 8 weeks old when we get him (like most new puppies) and i was wondering what age to train the new dog to not eat my bird and how to do it (i tried to train my terrier to do this , shes 9 and she was suprizeling good with the bird the only time she would try to bite/chase her was when the bird was on the ground and the dog went up to sniff her and the bird ran away and her instinct kicked in so she tried to eat the bird) so yeah how do i train the new dog to be good around my bird and when should i start training the new dog(and dont say this is impossible beacause k.c spaniels are supposedly really good with non-canine pets)

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