There are many, wooden feeders. In the photo we see a very simple design, which can be built literally in a matter of minutes. For such a feeder from a wooden log block even an old stump is suitablebut it’s better to take an ordinary wood saw cut.
From a piece of wood, it is advised to simply hollow out the middle, but so that small walls remain. So the feeding trough is ready, it remains to pour feed into it - grains or crumbs - and figure out how to fix this on the branch. Rings and carbines sold in hardware stores are great for wood. And the birds will not do business, they will not only fly here in winter to refresh themselves. At the same time, children will be pleased with their twitter.