Enter a checklist for Birds Of Florida or even the USA.
Is it possible to have a Florida specific or USA list rather than using the whole world list?
How do you edit it? One by one? Um, I don't think that would work when you are dealing with hundreds of species. Have you actually tried this? Bird Journal need a way to upload a taxonomy. Give us the columns needed. I'd love a list for my state, and there are a number online. How do I get them into Bird Journal?
Simon Booton-Mander commented
Yes it is. Create a custom Checklist and copy existing list and edit it. If you do not see a list you can copy check the Library section and install one that is as close as possible, e.g. Birds of the United States (IOC).