I have a Pommie, Snowboy, 9 mo., and a Yorkie, Chipper, 1.25 yr. They love each other, although, I do have to watch that the Pommie doesn't overpower Chipper. There is a 2 lb. difference. I don't think Snowboy intentionally gets pushy, but he is just 9 mo. and has a lot of growing up to do. I trust that as he gets older he will be more discerning. It is great entertainment to watch them play.
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Joanne
Eli
Chipper
Eva
Snowboy
Rosie(R.I.P. 1996-July 29, 2013)
Cocoa(R.I.P 1998-April 26, 2012):