I have free roaming gang of 5 ducks. I was feeding them duck feed, but then, I stopped completely, because they only nibbled a few times and then my dogs ate it. For some reason, dogs love the stuff - even whole corn kernels and grain! Well, after I stopped giving them their duck feed, they still protested from time to time, and they wanted something to eat. If I gave them their feed, they just made a few bites and walk away or quacked some more. If I gave them whole corn kernels, they attacked the stuff and ate as much as they could, before eating some grass, jumping into the pool to play and later on, rest for a few hours. Now with colder weather with morning temperatures just slightly above freezing, I tried giving them their feed again, because they may have more difficulties foraging. Well, they didn't touch their feed and wanted their corn after they foraged for like half a day. I have noticed they eat more corn now and since they are still foraging a lot, I doubt there's an issue, they must get their proteins and refuse to eat protein rich feed, right? Will they accept their feed when they need to? When they were ducklings, they were bad at foraging and they ate as much feed as I could get them, I rarely even gave them corn, I rather added wheat or oat grain and oatmeal to their duck feed. At that point, I had to lower the protein content, because there were zillions of slugs and they had more than enough - I was actually worried about angel wings. They eat a lot of greens, though. After eating corn, they start grazing grass, cloves and other greens they find near. I'm also sure, there are quite a lot of worms still available to them. I guess, I'll just have to wait and see if they are spoiled and want to eat candies (corn or other grains), or is it just that they have enough nutrients from their foraging and only need to fill their crops with something high on energy. Since it's getting colder, they may like corn better.