Try to create something similar in your shelter belts. Set out your plants in a random pattern - this is more pleasing to the eye than straight rows. As well as belts of trees, plant some scattered clumps of vegetation. A eucalypt closely surrounded by several wattles and a few large and small shrubs makes a satisfactory refuge and nesting site for small birds. For the wildlife You can combine a desire for shelter or privacy with the provision of shelter and food plants for birds and insects and eventually provide roosting and nesting areas.
Wattles provide food for seed-eating and insectivorous birds.
Grevilleas attract honeyeaterss. Prickly Hakeas and other dense native plants make safe nesting sites. An eroded creek presents an opportunity for imaginative re-vegetation. If the creek has eroded down to rock or hard clay, spread prunings and dead branches over the bottom of the creek. This will slow the flow of water and trap silt.