Pretty bird food is home-made. I made it last week and tomorrow it goes out. I recycled 4 plastic bottles - cut the bottoms. Then I filled it with seeds and poured melted lard.
If you live in zones 4-6 and in the winter you start feeding birds in your garden, don't stop it. Do it as regular as you can. Birds get used to the food you provide - it becomes an important place in their winter life. If you stop feeding, they wait for your food and sometimes they may die while waiting too long and getting what they need to survive.
Pretty bird food is not only pretty, but also yummie!