Bill of the Birds turns dubious

Bill Thompson III, editor of Bird Watcher's Digest and husband of Julie Zickefoose, is no longer a True Believer:

The birding community is slowly dividing into camps: The True Believers, The Really-Want-to Believers, The Mostly Dubious, and The Non-believers. Where do you stand?

I must admit that I started out in the first category, but have drifted, over time, into the Dubious category, mostly because no other confirmation of the bird's/birds' existence has come to light.