Yesterday I reported a male and female Pied-billed Grebe at Greenlawn Dam. Only one bird had the black bar on its bill. That only indicates age, not sex, so perhaps they were two of the same sex. Sorry for the error. Joan Frederick ______________________________________________________________________ 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]