In temperament it is alert, self-assured and quick to learn, with a watchful reserve towards strangers that makes it a capable watchdog for house and yard. Owners and breed writers often remark on its long memory and its readiness to think for itself, traits that suited a herding dog working at a distance from the shepherd. It tends to be lively and closely attached to its own household.
The dog is compact and muscular, slightly longer than it is tall, beneath a long, dense, shaggy double coat that falls over the eyes. Any colour is permitted; many are white with patches of grey, black or sand, and puppies' colours often lighten as they mature.
The Polish Lowland Sheepdog, known at home as the Polski Owczarek Nizinny, owes its modern form to the post-war revival led by Danuta Hryniewicz. A breed standard based on her dog Smok was accepted internationally in the late nineteen-fifties, after which the breed spread through continental Europe and later reached Britain and North America. It was bred to work flocks on the open plains of Poland, moving and gathering sheep with a good deal of independent judgement, and its moderate build suited long days in the field.