For a hungry bird, any type of grass seed is a good seed. There is one exception, however: seeds that are coated with a taste that many birds find offensive. Brands are available at garden centers.
It is possible to scare birds away, though it isn't likely they will stay away. Placing scarecrows and rubber snakes are two methods that birds quickly become accustomed to and may soon ignore. Detractors that move, such as pinwheels and flags, are better for keeping birds at bay.
Placing a protective barrier over seeds, particularly before they sprout, may present the best measure of defense against birds. A thin layer of seed-free straw, floating covers or bird netting placed 2 to 3 inches off the ground will help keep birds away. Secure the bird netting with stakes.
Birds most actively feed on seeds during the morning and afternoon. If you are relying on static decoys such as scarecrows, be prepared to reposition them in a timely manner to fend off the feeders.