One other clarification regarding a challenge. I know during the North American Mammals challenge, Central America was not considered part of North America, even though geographically it is part of the continent. For this passerine challenge, can Central American species Count or does the species need to be native to Mexico, USA, and/or Canda?
I am counting Central America in order to make this a little easier on everyone! Let's leave out the Caribbean, though, I think, since the Lesser Antilles in particular get a lot of birds from South America and I don't want to complicate things by making only part of the Caribbean count.
~Thylo