In North Qeynos: Fippy Darkpaw spawns regularly in the newbie area in front of North Qeynos. He shouts a threat to the zone and then charges the Qeynos gate, only to be killed off by the guards outside.
In Brell's Rest: Fippy Darkpaw is a little more difficult. See this quest entry for event and loot information. A chest spawns with loot after completion of this event.