Thought it might be of interest again to point out an interesting paper about birds and the hydrology of the Bellevue ponds from three-quarters of a century ago by Lawrence Hicks. Among other things it explains why shorebirds may congregate there when other locales go wanting. http://sora.unm.edu/sites/default/files/journals/wilson/v050n03/p0197-p0200.pdf Bill Whan Columbus ______________________________________________________________________ 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]