To make you feel better, the Scralet-rumped Trogon is the most common ones despite their size. They can be found at most undisturbed jungle throughout Borneo. All you have to do is cover all the ground...???
Personally, I have several encounters with this species...quite a number of times. Frankly speaking..to classify them as common? not in my book! They are just as hard to find as the Whitehead's Trogon or the Red-Naped...
Anyway, don't be too discouraged there. Nike says "just do it"...to pump up the spirit, enjoy these personal best...not the best...yet..lol ;-)