A Really Big Dog

As we've walked through the rural areas of Portugal and Spain, everyone seems to have a dog. I've observed their behavior as we've passed by, and they exhibit one of 4 types.

This guy's job is to count every pilgrim that's past by his spot on the path.  We were the first ones to pass by in a long time, so he was taking a rest.

This guy couldn't care less

Can I go for a walk too. Please Please Please

My least favorite: menacing and aggressive, I often wish they were behind taller walls.

When we left Santiago, it was early on a foggy damp drizzly day.  After several hours of walking, we were back in a rural agricultural area, on a lovely dirt path bordered by short  rock walls, when I heard a low pitched regular Woof Woof Woof, coming from somewhere in the fog.  After rounding the next corner it was gone.  Around the next bend it was back, still low pitched, but louder.  Woof woof woof. I quickened my pace a bit, but the sound persisted.  Just then, the fog lifted ever so slightly, and I spied the culprit: