On Friday 4/28, I along with Monica and Alan Brubaker observed a Northern Rough-winged Swallow make numerous trips to its burrow with nest material. Its burrow is located in the bank along the creek at E Milo Beck Park in Springboro, OH. Soon a female Brown-headed Cowbird appeared within a few feet of the burrow and it watched the female Northern Rough-winged Swallow go in and out of the burrow several times. Then the female cowbird entered the burrow. ______________________________________________________________________ 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]