I think the spreadsheet import option is intended for people who want to import historical data into eBird without re-keying it all. For current reports, pick a location from the map and use the online form. After you submit a report from a location, it will be stored in your "My Locations" drop down list so that you don't need to go back to the map every time.
When you use the map view, you will see "hotspots" - major parks, etc. known for being common birding locations. You can drop a sighting maker anywere you want, but I try to use the hotspot markers when appropriate, just to make the range map data easier to read. A large park like High Park will just have one marker, but to me, that's clearer than putting 20 different place marks at specific locations all over the park. (Just my opinion. I know some people tke the opposite view.)
BB
