Drove behind Fremont's water filtration plant, where warm outlet stream flows into Sandusky River. Several hundred Mallards with a sprinkling of Black Ducks were feeding on the thousands of shiners in the open water. Two adult Bald Eagles flew from their nearby perch and swooped over the large, concentrated flock of ducks. The ducks didn't fly into the air, but rapidly skirted away, paddling away. The eagles never touched the water and immediately flew back to their perch high atop a nearby tree. I wonder why they didn't follow through on the attack and talon a duck. Maybe looking for old, unhealthy or sick prey? Observed this behavior for a half hour. Sixty additional Mallards landed in the 30 ft. wide by 250 ft. long open stretch of water. There were over 300 Mallards and a dozen or so Black Ducks feeding when I left. An interesting interaction! Robert ______________________________________________________________________ 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]