Andy is correct that there is value in documenting local movements, and the Black-tailed Gull is a great example a rarity that visits multiple locations as reflected in the eBird data. But, I don't think Rob's suggestion is "one location per rarity." Instead, it's simply a way to consolidate duplicate locations. In the BTGU case, it would be like creating one location for the cement bridge -- a specific spot that hardly qualifies as a "Hotspot" but is associated with multiple "personal locations" by folks in search of the BTGU. It makes the most sense for feeders and other specific locations a rare bird is likely to be refound by others. As with "Hotspots", it's almost always better to create a new personal location when the existing options don't accurately describe the location of your observations. This kind of public sharing just creates another option folks to use if it's appropriate. Looking at the Kirtland's Warbler map, there are a few probable errors & some clear duplicated locations mixed in with a handful of different locations visited by that bird. Sharing locations per Rob's suggestion is simply a way to help minimize those errors and consolidate those duplicate personal locations. I should have included this link in my previous email, but to read what the eBird team has to say about choosing personal locations, see http://ebird.org/content/ebird/news/location_specificity Good birding, Paul Hurtado ______________________________________________________________________ Ohio-birds mailing list, a service of the Ohio Ornithological Society. Our thanks to Miami University for hosting this mailing list. Additional discussions can be found in our forums, at www.ohiobirds.org/forum/. You can join or leave the list, or change your options, at: http://listserv.muohio.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]