I’m not a big fan of using a flash, especially when shooting documentary-style photos. I’d much rather use the existing light to communicate information, mood, etc.
Sometimes, however. there’s no substitute for adding light to a scene.
Needing a standalone photo for A1, I found this ice fisherman trying his luck on a local lake. The weather was sunny and cold and I wanted to somehow include the sun in the to help convey that idea of sun. Using the flash to illuminate the fisherman I was able to better balance the light between the sun and the fisherman. Plus, I was able to get the interesting starburst effect by using a small f-stop.
As a side note, the flash was set on manual mode at full power. I almost always use my Canon automatic/TTL flash in the manual mode because of the inconsistent results I get while using it in the automatic mode. I vary the power output of the flash to match the situation.