Heeler X pups

We have a litter of gorgeous healthy heeler x border collie pups
They are all full of personality and love to get into all sorts of mischief, and best of all they sleep through the night.
We are still working on house training.
There are 4 males
Mum is a heeler border collie X and dad is unknown. They don't look much like heeler though so they must take after dad.
They are in foster care in Mornington