I can also imagine the problems when someone has, for instance, their work and personal phones with them.

People seem to be pretty universally incapable of not assuming computer products to be infallible, especially when they might get some extra money in "over occupancy" fees.

Merlin got me into birding, and I've found this to be true, at least in some regions, especially if there's lots of background noise.

Unless a species has a really, really unique call or song, I've made it my personal rule to get eyes on it and, if I'm still not convinced, to take a picture and cross reference with iNaturalist and what folks on there think of it.

I've learned to curse the species that differ from others by the sheen of the backs of the males' necks or the angle of a wingbar. Also, gulls that only differ by things like the color of their feet or beaks.