In a few cases, I've included subspecies information for forms that are considered full species by some authorities.
I left off the "San Isidro Mystery Owl", which I was fortunate to see in 2008. The determination of whether or not this is a new species has yet to be made.
Each common and scientific name is a link to a Google image search for that name. This provides a quick way to find images of each species (if Google's search can find them on the web).