Cliff and I went to the trouble of buying a steer for Secret when she was small, so she'd have another cow as a friend. Honestly, she never got that attached to him, although he was quite attached to her. She hardly seems to miss him, now that he's in the deep freeze.
I've been noticing, though, that she has developed an attachment to an empty black rubber tub that's in her pen.
I first realized this when I started turning her out to eat grass; when she'd come back up to let me know she wanted in her pen, I'd open the gate for her. She didn't go directly to her hay, as I thought she would: she'd go straight to a tub that used to hold cattle mineral. We've never bought such mineral, so I don't know where the thing came from or who gave it to us. We were using it as a water container, but Secret kept turning it over and spilling the water, so we gave up on that.
Today I took a video of her going into her pen after grazing all day long. Forgive the shaky footage; it's hard to make a movie at the same time you're opening and closing a gate. This is Secret's best friend; she even makes little lowing noises like the sounds a cow makes to her new calf.
It wasn't enough that I'm stuck with a dog that's nutty as a fruitcake. Now I have a cow that's attached to an inanimate object.