Last night I was called by a 4-H family and told about loss of a duck in theirs back yard. It was their first loss. Bird free-ranged with others during latter part of day until just after dark. Remains of carcass found just after dark near garden. About 85% of bird still present (Khaki Cambell hen). Neck de-fleshed with trachea and vertebrate intact. A strip of muscle was picked away down left side of back. A lot of skin exposed where feathers were removed. Some scattering of feathers around kill site although it was windy and feathers of a duck. Most removed feathers remaining had skin attached. Timing not consistent with raccoon or opossum and carcass remaining not consistent with fox, coyote, or bobcat. Perimeter fence likely excluded dogs. It was fun listening to the theories. Then we got down to business and looked at carcass in more detail. Bones in de-fleshed area on back were intact with no chewing action (consistent with raptor). What nailed if for me was the large feces with lots of white uric acid on grown next to the carcass. It was feces from a bird that consumes a very high protein diet. Hawk or owl. They setup a game camera and replaced carcass. I had to invest some time in discussing, yes pet loss, but this can be used to prevent further such happenings.