Visual repellents such as aluminum plates, fake hawks
, snakes, or owls can be used as well to scare birds off. There are odor repellents that come in handy too and are effective when controlling deer. When the spring months approach, food tends to be scarce for deer which makes home grown vineyards a perfect target for them. A human's scent can also be used or you can use dog hair as well as soap to help control them and keep them away. Coyotes are also effective to keep predators away.