I grew up with Great Pyrenees and Newfoundlands. I currently have a Newfoundland and though he's a working dog, he's not an LGD but he's well worth his weight in gold. He's a house dog...or more a constant-by-my-side dog and I'm his #1 priority but the flock reaps the benefits of his gentle yet protective nature. He won't hesitate to chase off the neighbors dogs when they get a little too rambunctious around me, my children, cat or chickens. He patrols the property line, marking his territory along the way and will occasionally venture beyond the line when the neighbors call him over for a visit or to encourage him to chase the Canada geese off their lawns. He even scared the dickens out of a black bear that was rummaging through my compost. That was well over a year ago and there have been zero signs of any bear, fox, coon, skunk, etc. sightings since and that's with a Nature Preserve right across the road.
This is his individual nature though. I've had other newfies that would tear an animal to shreds, whether a raccoon, cat or anything else for that matter...they killed well over their fair share of porcupines, leaving them on our doorstep and spiking the vet bills through the roof. We never would have been able to keep any livestock other than my horses and donkey with them around and even so, they'd been kicked by the horses more than a few times when they would get out and give chase in the pastures. They would have been great for water rescue but no matter how much we worked with them, their prey drives were far too high to stick around as even halfway decent farm dogs so they were placed in far more suitable homes.
This is his individual nature though. I've had other newfies that would tear an animal to shreds, whether a raccoon, cat or anything else for that matter...they killed well over their fair share of porcupines, leaving them on our doorstep and spiking the vet bills through the roof. We never would have been able to keep any livestock other than my horses and donkey with them around and even so, they'd been kicked by the horses more than a few times when they would get out and give chase in the pastures. They would have been great for water rescue but no matter how much we worked with them, their prey drives were far too high to stick around as even halfway decent farm dogs so they were placed in far more suitable homes.