You may think your little puppy is barking "at nothing at all." But -- she is probably hearing something. Dogs can hear things that we couldn't hear in a million years.
My dogs started barking like crazy around 4 or 5 in the morning a couple winters ago. Finally, I got to see if anything was outside --- and lo and behold, there were about a dozen deer in my back yard. I never heard a thing, but my dogs sure knew they were there. I read that deer can make noises between themselves that the human ear can hear - but dogs and many other animals do hear this noise that they make.
I know for sure my dogs sleep away most of the late evening until I turn off the TV and the house becomes quiet. This is when they hear all those noises outside that I don't hear - and these sounds do cause them to bark. So, if they are having one of those "barking nights," I turn the TV back on and they do settle down again.
Good luck - Carol Jean |