It's worth while keeping track of unexpected birds seen in your locality in summer. Their presence may be explained in various ways. James Muller has been posting on what is an all-but-confirmed nest of herring gulls here in Columbus, for example, and I saw a high-plumaged Caspian tern over Hoover Reservoir here yesterday. There are quite a few species once thought absent here that have proved to be at least present, or even nesting, with more careful observations. Lots of factors--habitat destruction/restoration and climate change to mention only two--affect bird distributions, and they are worth keeping track of. Lots of observers report first sightings of birds each year, but not so many look for them later.... Bill Whan Columbus ______________________________________________________________________ Ohio-birds mailing list, a service of the Ohio Ornithological Society. Please consider joining our Society, at www.ohiobirds.org/site/membership.php. Our thanks to Miami University for hosting this mailing list. You can join or leave the list, or change your options, at: listserv.miamioh.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]