Duck hunting and dove hunting can often be measured in boxes per half day.
I often co-host duck hunting excursions on green timber hunts with as many as 15-20 VIP hunters. Even when there are half a dozen times when flocks of 50 or more ducks come in tight it is not unusual for out of say 15 hunters for only 3 to be able to actually shoot well enough to kill a duck. With a limit of say 6 ducks per hunter, the shooters can take down about 30 each. Of course, they always remember to say to each "once a year" hunter in their blind "nice shooting" after each flurry of shots. I usually carry two boxes of shells, and usually bring back about 1/2 a box; no one gets them all.
I specifically remember one morning when we only had three known shooters in 18 hunters in a green timber "hole" where 35 yards is a long shot. About 200+ mallards came in and all lighted on the water; when the first few nervous ducks started to get up someone yelled "get 'em" and it sounded like WWIII had started; when the shooting stopped, there wasn't a single duck down. I had been working on an old, lighter fluid type hand warmer, and didn't even pick up my gun, the mid-hole shooter had slipped out of the hole behind a tree to relieve himself and had his waders half down and the third shooter was in a big box blind trying to light a propane heater.
I got 3 out of the next wad to come in.