A collie is a distinctive type of herding dog, ultimately
originating in Britain, especially in the upland areas
of the north and west. It is a medium-sized, fairly
lightly-built dog with a pointed snout, and many types
have a distinctive white pattern over the shoulders.
Collies are very active and agile, and most types
have a very strong herding instinct.
Collies are always alert and are active and agile.
The fur may be short, flat, or long, and the tail
may be smooth, feathered, or bushy.Working collies
are extremely energetic and agile dogs with great
stamina, well able to run all day without tiring,
even over very rough or steep ground.