when i once rang the list (about 30 of the numbers) I actually got offered pups that were due around 5 times and 3 other times pups were ready- 1 person asked me to collect a chi tommorow

and a few others asked me to come and view... and the rest just said i could go on their list.
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It is the british chihuahua club list as sarah said- so it is of reputable breeders and show-ers but judge for yourself when you go view the house and pups so you know for defenate.