GPS for subject locations
I have yet had the need or desire to own an auto or handheld GPS but see that birders are increasingly, sharing coordinates of rare or desirable birds. In fact, some desirable species for me might soon be communicated by a birder providing UTM coordinates. No idea what to do with them!
Specifically for going out in the field to find and photograph birds that birders have shared coordinates with you, is this a valuable or imperfect/novelty tool for photographers? Obviously, birds fly and wander so I mean to find general locations, not a specific tree or branch! (I assume specific nest spots are shared)