They speak their own language.
Blink dogs hunt in packs, teleporting in a seemingly random
fashion until they surround their prey, allowing some of them to
make flank attacks.
Blink (Su): A blink dog can blink as the spell cast by an
8th-level sorcerer, and can evoke or end the effect as a free
Dimension Door (Su): A blink dog can teleport as dimension
door cast by an 8th-level sorcerer, once per round as a free
action. The ability affects only the blink dog, which never
appears within a solid object and can act immediately after