Do you know what she's actually barking at? You mentioned wild animals, or your daughter having health problems. I think that the solution would be to try to remove the thing catching her attention and causing her to bark, if at all possible.

I have one dog that barks at things in the yard; if I close the blinds, it seems to help.
The other one carries on if she gets thirsty at 3 am or needs to go out...she just hasn't quite figured out the 'gone to bed, want to stay in bed' thing...What I do with her is wait until she is silent for a time and then let her out to tell me whatever it is that she wanted, and fill whatever need woke her up. I don't want to let her think the barking is what got the response (kind of like puppy crying), but I don't want to clean up after her mess if she had to go during the night either, right?

Anyway, if you think your daughter might be having seizures (again?), couldn't a doctor confirm that, get her on medication and that solve the barking if that's the issue?

Good luck with the barking, regardless; I know it gets frustrating.