I invite corrections from more knowledgeable folks, but my conversations with Ohio raptor experts remind me that the dark-plumaged red-tailed hawks of Ohio are most often reported in our northwestern corner, and are simply a small tribe among our resident red-tails. Real calurus from out west are possible of course but quite rare; they are noticeably smaller, and pretty much non-migratory in their home range. There's an 1895 specimen in the OSU Museum that was said to be a calurus, but decades later was determined to be local borealis with dark feathering (determined by Oberholser); I don't know if genuine calurus specimens from Ohio exist. 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.muohio.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]