To attract small clinging birds, provide hanging feeders with small access holes. Some birds, such as juncos, prefer open tray feeders, or seed scattered on the ground. Natural vegetation provides berries, seeds and insects. A variety of water sources attracts the largest variety of birds. Robins, for example, won't eat food put out by people, but will appreciate a birdbath very much.
Dead trees provide perches and homes for many birds.
Grasses - provide shelter and seed. Dead trees - provide insect food, and hole nesting places. Pigeons, jays and wood ducks eat acorns. Alder - A favorite of siskins. Redpolls feed on the seed, and warblers on the insects.