Well, yes, typically when one creature (In this cae your Dad

) howls, Coyotes are the first to answer. Coyotes and wolves both return howls frequesntly, and it is quite fun. I've done this before, I was on one side of a valley, there was a road down below me, and on the other end were some coyotes. My Mom was talking to someone, and I was howling with the coyotes for a while - it's SO much fun, you feel almost like one of them! Coyotes susually howl differently than wolves - like you stated it was a "Bark howl," sort of thing, where wolves do bark as well, their howls are usually quite solid whie coyotes' drift off into emmitting barks. Sadly: I live where there are no wolves or coyotes, this was done on a vacation. But yes: It can be a very fun, rewarding, and enjoyable experience as well as a frightening one.

I personally found it incredibly amazing and fun... I've done this a few times, but the one time mentioned above is the only time I can recall clearly enough.
