Its not a retriever.Go Here:http://www.yourpurebredpuppy.com/reviews/greatpyrenees.html
My sis has 3 they stay out all winter and travel in the sheep herd.You wouldn’t want to be a coyote near those sheep.
They are gental if they know you
and gentle too
From your link:
“Fences must be secure, for Pyrs have a tendency to roam.”
I guess so!