You can add any species to any checklist that you submit to eBird. The process is slightly different for eBird Mobile (see below) and ebird.org.
Here is what to do once you have the checklist open at ebird.org:
- Click "add a species" at the top right, just under the "jump to species" box
- Type the bird name or any part of the bird name in the box. For example, "Peregrine", "Falcon", or "Peregrine Falcon" will all give a list of birds that have those word(s) in their name, which will always include Peregrine Falcon.
- Select the species' name. If the name is on the list already, it will jump you to that point on the list. If it is not, it will allow you to add the species at the top.
Within eBird Mobile, this same option appears as "Search entire taxonomy".