I just watched her for the last two hours, and she showed me something that fits your question! I never saw her by herself before, and today I did. She doesn't whine when other doves are around, and actually sits still (besides pecking at the seed I give her flock). Her other family members...
I have this dove that hangs out with me every day, but I've finally decided that there might be something wrong with her. If she was a human, I'd say she might just have tourette's syndrome. Can birds get that neurological issue? Anyway, what the bird does.
She is always whining all the time...