[quote=@Sento]
Hey um how good is there sense of smell
[/quote]

For details [url=http://www.roleplayerguild.com/posts/3262818]check here[/url], here's their senses: 

[quote]Heighten Senses: Blind and without eyesight, they can only hear thanks to the shoulder ‘ears’ fanning out to absorb vibrations in the air and through its thick callous pad on its claws like oversize ear drums. Able to shut them off and on when needed. It also aids in gathering and storing heat in the body, allowing Ridge Hounds to spend or expel it whenever needed.[/quote]

They technically don't smell, but feel vibrations. So any movement or sound, they will sense immediately.