Good advice here re food, lots of it and as nurtricious and tempting as poss. Try some smelly tinned pilchards if you have any, or similar, in a separate bowl to other food in case she's fussy! thats pilchards in tom sauce with it all rinsed off, or in oil if necessary, also rinsed, not in brine, that will make her ill.
Lots of water too of course.
Poor mite and may the bastards who left her die a thousand deaths.
Then keep out of the way, downwind if you go back to check on her, less chance of her running that way.
Next advice is not to contact the DW further unless he contacts you! What a git.
I've just messaged a DW contact who is also a very good no kill rescuer for advice as its a grey area wrt the law to me.
With STRAYS it works like this:
You, the finder, MUST by law report the finding of a dog to the council. You dont have to hand her ovr though, as long as you:
- Give the DW no reason to believe that there would be welfare issues in you caring for the dog.
- Give them your name and address and contract to keep the dog/s for at least one month without handing or selling them to anyone else/
- Give back to the owner if located and make reasonable efforts to find them.
HOWEVER, these are clearly not strays. Hence I've messaged both my DW contact and the rescue I help at who caught and took in (subsequently rehomed, legally) a presumed abandoned pregnant GSD. I THINK that they had DW involvememnt in this - if so they will be able to advise further, am waiting on replies.
Given that the DW is a git and the pound kills (find me one which doesn't!) I would say sidestep them as much as possible. If this were just a dumped adult dog I'd tell them she'd run off if contacted further by them, and secure no kill rescue for her (I don;t claim to do legal, I do moral, I don't advise others to follow my lead, this is just what I would do). However you can't claim this for a box of pups hence I'm trying to find the best, legal way forward for you and the dogs.
I would regardless seriously and strongly suggest that you appeal to the GSD rescue community (I have one in mind if it helps) to help catch mum and to help you deal with her, the pups, and the DW and law appropriately.