I have a mating pair of Wood Ducks in my parent's backyard. The female is checking out a large old oak tree in the backyard. The oak has several cavities in the upper canopy of the tree. More updates to come. Jeremiah W. Roth ______________________________________________________________________ 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]