Very, very long time member
Very true.You're too hard on yourself. The early explorers and naturalists didn't have cameras. Did Janszoon keep quiet that he discovered Australia, because he didn't have a camera?
I guess the early birders shot their sightings and had them stuffed as proof of their discoveries, but while I admire your obvious diligence, I'm not sure that 'digital shooting' is necessary as proof of a sighting. (And what if your camera fails?)