Last year I was desperately trying to find Phanaeus vindex on a sunny and windy day. Being the newbie that I was (still am to an extent), I had no concept of what their dung preferences were, and just walked around my family’s land breaking open dry-ish cow dung with a stick to see if they contained any Phanaeus vindex. After breaking open the last pile of cow dung that I could find, I walked away with no dung beetle until I heard loud buzzing. I turned around and saw a hovering glint of green and copper. I instantly recognized the Phanaeus vindex and snatched it. While I was admiring the lustrous beetle crawling on my hand, another Phanaeus vindex came, then another. I finally figured out the way of the Phanaeus vindex, and I can now get a hundred of them without a problem if I wanted to.
I’m interested to learn more about your technique!