ThrorII
Adventurer
Dwarves have 2 in 6 for room or corridor traps, like pit traps, scythe traps, etc. (everyone else [including the thief] is 1 in 6).Yeah, it's better to have a Dwarf looking for traps than a Thief at level 1. And if you don't use the alt thief rules the Dwarf is just better for awhile at trap finding.
The Thieves Find Traps ability is for treasure and door traps (small traps on items).