The old pair that came with the sheep mainly stay with the sheep. They will be 10 this year and are a neutered/spayed brother-sister team. For the most part they stay with the sheep - whether the sheep stay inside my fence or not. Grin. (That's not a problem any more - that was the first six months.) The male comes up to the house and eats some days and then goes right back out. The female I worry about not being able to hear. I had just let the sheep out one morning when the #3 dog was relatively new and Sweetie and Chloe were actually getting acquainted friendly-like - we were all sheep, dogs, human pretty close together - and I saw Mr. Coyote at the west fence across the field. I watched for awhile and the guard dogs are frolicking at my feet (um hm I was annoyed) and Lance comes flying down from the house barking up a storm, jumps the fence, runs past us and out toward the west fence. The girls stopped and stared then joined him. He's priceless and I hate to see him getting older. Sweetie however, just laid there until I pulled the tractor up to her (just got a tractor - it's so cool!) back in November and she raised her head like 'huh what'. So I do wonder if she hears very well sometimes.
And I babble on. Sweetie doesn't come into the yard much at all. Chloe, the new girl, has her own sheep - the rams and ram lambs - that are in the east pasture. If there's 'excitement' in the west, she joins in to see what the commotion is, but returns to her sheep. She rarely comes into the yard as well. Now the newest addition, Jo, has taken a tour of the field with me and is mostly in the barn with her pups, but is looking like she'll be more of a human dog. She's only been here three weeks though and I'm trying to give her a chance. I got her primarily because of the pups and won't have a problem re-homing her to a non-working home if that's the way it turns out.
My sheep are in two bunches at the moment - I'd prefer three except I really only have the two fields at the moment and a couple acre lots. I'd like to separate my moms and lambs from the flock and keep them closer in, but I even lost lambs that way last year in the mid-afternoon. There wasn't a dog that stayed with my 'mom' bunch close to the house. Sweetie & Lance take the main flock in the west field and, until Chloe came, the rams and dinner ram lambs were on their own in the east. There are about 30 rams/lambs right now and 150 or so in the main flock with new additions almost daily.
And I do bring everyone in at night. Lance still stays out in the field all night - rain, snow, ice, whatever - but Sweetie generally goes into the lot with the girls. She might not stay there all night, but generally starts out in there.
The only reason I started getting another (and another again) dog is because my primary pair are 10 years old and Lance has some health issues and trouble getting around. Although he's a great example of mind over matter. He sleeps so soundly sometimes, I think he's dead and walk out into the field and literally have to touch him before he does anything to acknowledge my presence.
I had a friend come to visit while I was gone and since Chloe's sheep were near the house, Chloe came out to visit and growled at her. Didn't want to be petted - just wanted to see what was going on.
Sometimes they come to see me when I'm in the yard, but that's generally when the girls are up. They come to meet me when I walk the field part of the time. Sometimes they come on the walk, or part way, and sometimes they don't. Yes, they like to be acknowledged for a bit of loving and petting, but they don't dog my heels constantly for it every moment I'm out there either.
I have a friend with sheep and pyrs. Her pyrs liked to greet visitors, although they could be quite intimidating, and one really wanted to be petted. They did roam the field, but were generally closer to the house than the sheep. One of them couldn't be pried from your side when you were out in the field. They were good guard dogs - watched them take out a bobcat in the field one day - but not always good 'working' dogs if I have that distinction right.
The wildlife guy wants to say that the pyrs 'invite' the coyotes at a minimum and that the pyrs are killing the sheep at the other end of it which is why he wants them put up 'to see'. He says that he has talked with others of his kind around the state and they agree. I want to make the guy see he's wrong - but not at the expense of losing so many lambs again.