So as I'm starting to learn about NFCs the obvious question came to me: how do we know what we currently know?
Do we typically infer ID features from daytime flight calls where we can visually verify our IDs? Or are night calls too different from daytime ones, meaning that we have/had to find other ways of matching calls with birds (netting, night time visual observations, etc)? Imagine somebody trying to get into NFCs in an unexplored part of the world. How does such a person start? Thanks. Wim van Dam Solvang, CA (USA) -- NFC-L List Info: Welcome and Basics � http://www.northeastbirding.com/NFC_WELCOME Rules and Information � http://www.northeastbirding.com/NFC_RULES Subscribe, Configuration and Leave � http://www.northeastbirding.com/NFC-L_SubscribeConfigurationLeave.htm Archives: The Mail Archive � http://email@example.com/maillist.html Surfbirds � http://www.surfbirds.com/birdingmail/Group/NFC-L Birding.ABA.Org � http://birding.aba.org/maillist/NFC Please submit your observations to eBird! ��http://ebird.org/content/ebird/ --