Warning: If you have a weak stomach, you may not want to read the answer to the last question (the one involving Sadie).
Will the frozen parts of her ears just fall or break off by themselves?
The frozen parts more or less wither, curl up, and shrink to nothing. I am really hoping her tail didn't freeze too, because a cow needs her tail to use as a fly-swatter. As far as I can tell, it's fine.
"I have always felt that
way about horses too that they are so lonely when left by themselves
all day. Cats & dogs I see differently because they seem to be
around the owners more. I hope she isn't too terribly lonely."
As one who has had several "only" horses (Blue was, for a long time), you may rest assured that an "only" horse can be quite happy. They are much more people-friendly, because that's all they have, to interact with. I've had "only" cows before, too. They also are quite content (unless they're in heat of course). If I got another calf as company for Secret, they couldn't live in the same pen anyhow, because bottle calves nurse one another and ruin their future udders that way.
How does Sadie do with her? Actually, Monica and I had Sadie in the pen with us yesterday evening, and Sadie was unconcerned with the calf, because she was busy eating Secret's poop. There is something about calf-poop from calves still on an all-milk diet that dogs consider a gourmet treat. I know, dogs eat poop anyway, but this is totally different: they'll devour new-born calf poop like it is steak! Trouble is, there was so much hay mixed in with the yummy poop Sadie was eating that she came in the house and puked up the most disgusting pile of gunk you've EVER seen! Thank goodness for Spot-Shot.