Do you leave their water, pee wee pad out? I also have the music on while i'm out with the hope of it blocking outside noises that might startle Duke. He also has his bed and toys to play.
I'm not sure what is causing yours to bark for so long, have you left them alone before? Is this new behaviors?
Hopefully someone on here can help you.
__________________  *Owned by a Yorkie name Duke* |