Small blocks of shrubbery within a windbreak can assist these delightful little birds. Magpies seem to survive in most places. Tall trees within a windbreak will help them feel at home in an orchard. Flowering trees Probably the greatest benefit for biological control of pests and the assistance to crop pollination is to have a number of flowering tree species make up an orchard windbreak. By planting a range of trees that flower throughout the year, but not at the same time the orchard crop, a food source and habitat will be produced for beneficial birds and insects.
Many nectarivorous birds are also active insect eaters.
Honey eaters are known to hawk moths such as Heliothis and the moth of the flower eating caterpillar. But their first food is nectar and pollens. Give them their first course and they will eat moths for desert. Wasps Parasitic wasps such as scelio and scoliid wasps that parasite crickets, grass hoppers and caterpillars need to eat pollen and nectar as adults before they can lay their eggs into these pests. A regular supply of pollen and nectar from a multi special flowering windbreak will assist these pin head size wasps, to be part of the orchard's defense against pests.