I honestly can't recall this being mentioned yet on the listserve but thought everyone should check this out on the Cornell All About Birds website... http://www.birds.cornell.edu/AllAboutBirds/studying/nests/index_html Aaron Boone Columbus, Ohio ______________________________________________________________________ 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]