Wild Bird Seed - fruit
Many wild birds eat fruit, and added fruit is a source of nourishment and energy especially through the winter months when wild fruit becomes scarce. Apples are popular, even if starting to go bad, and are an instant hit with blackbirds, thrushes, starlings, sparrows and others. If leaving out apples or pears, cut them in half to help the birds get to the soft inner fruit quickly.
If you have fruit trees in the garden, it's a good idea to leave some of the fruit on the tree to fall off naturally. If you don't have fruit trees, you could consider growing some if there's room, or if not, some smaller indiginous fruiting bushes would help.
A good place to buy mixed fruit, seed and nuts is Just Green or you could pick some up cheap at the end of the day at a street market or greengrocers, or at the back of a supermarket where a lot of perfectly good 'waste' food can be found dumped.
Raisins are another very popular fruit source for most wild birds, but unless they are the best, plump ones, soak them before putting them out as then they will supply enough moisture to avoid dehydrating the birds. Other dried fruits can be used, but be sure to soak any that are at all shrivelled up.
If you have an apple tree in your garden, leave some apples on the tree [as here] for the wild birds to feed from, they will help them survive winter, providing much needed fuel to stay warm and active. The tree shown below is never picked yet fruits heavily every year, so provides a long-lasting supply of food for most of the winter months. Any insect damage which puts off humans is yet more food for birds! There might be a juicy grub or lava inside. Some fruit will drop off and begin to rot, eaten by ground feeding birds. Others will stay on the tree for months well into winter, and these will provide a supply of food when the others are eaten or rotted away.