8 Buff Orpingtons hens and 1 Rooster. Almost 8 months old. 12 pound hanging feeder with sloping cover. Feeder hangs approximately 12" from the ground in a secured run. Run is 8' x 24'. Secured run is totally covered with 1/2" wire fabric including roof eaves. Run also has a 1/2" wire fabric apron 18" around the base of the run. Run floor is 100% sand. Run is attached to the coop with a chunnel made with plywood and asphalt roofed. Coop is built from 3/4" tongue and grooved and is 4' x 6'. Chicken door between Coop and run is left open 24 x 7. No signs of chickens pecking each other. Wonderment I would fill the feeder twice a week. Tuesday evenings and Saturday morning, always some feed left in the feeder when I refill. With the colder weather, feeder would be almost empty. I figured with the colder weather they were eating more. Then I noticed that there was a lot of spilled feed on the run sand. I figured one of the chickens was entertaining themselves by digging feed out of the feeder and throwing it around. Thrown feed as always gone when I refilled the feeder. Monday when I gathered eggs I check the feeder, empty! I filled in back up. Tuesday evening filled the waterer and checked the feeder. Feeder with 1/2 empty with a hand full or two thrown on the ground. Now I wondering is something isn't getting into the run and stealing feed? No signs of and digging or tunneling around the run's wire apron. No gaps in the chunnel, coop or run larger then 1/2" square. The "something" would have to be able to squeeze thru a 1/2" square then either leap up 12" or crawl/slither up the wall, across an angled rafter (upside down), then down a chain to get to the feed. Because of the dry sand run floor no indications other then chicken tracks. A trail cam is presently towards the bottom of the budget/priority list. Thought about moving the web cam from the coop into the run, unfortunately it isn't weather proof and I don't have enough record capacity. Wondering what y'all think I'm missing or is a going on?