I would like to know on what basis birds for a specific location are grouped.For example, I you select "Maine" you will find some strange birds like Calliope hummingbird, rufous hummingbird, red throated loon etc.
I assume that you include rare or exceptional sightings? I would have preferred that you not include such birds but I understand that it is a "editorial choice"...
Louis
Montréal, Québec










