They are half beagle and half blue heeler....although these guys seem to pull a lot more of the beagle....our first set had a few that were more heeler. My DMIL has a chiwawa...actually, it was DHes Grandpa's (who is in his mid 90s) and
his name (the chiwawa) is Hoochi Mama (my DSIL has a uniquie sense of humor....but it is funny to hear a 90 year old Japanese man speak about his dog as Hoochi Mama

)....when we were gone my beagle got out one day and was sitting on the swing at my in-laws....probable lonely and my DFIL had been feeding her....so I keep telling my in-laws that the pups look like chiwawas and that in a couple months I am dropping them off at their house....DMIL just says, "Don't you DARE!!!!"