this is Fake Bark, skill able to replicate the bark of an angry dog. For example it could be used to scare thieves. There are multiple tracks available To add this skill on your Alexa Routines, please do the following: Enable this Alexa skill.
On Alexa app, navigate to Routines.
Click + to add a new routine.
Click + for "When this happens" and choose one.
Click + for "Add action" and choose "Skills".
Choose "Your Skills".
Select this skill.
Click Next.
Choose Device to perform the routine to.
Click Save.