above aerial agricultural agriculture angles appearance arial Australia below buildings country side developed development distance distant expanse farm farm buildings farming farmland farms flat flying formations from above height high landscape lined lines looking down movement moving northern Northern Australia outback panoramic views plantations river riverflats riverland rows rugged rural scenery scenic shadows sightseeing sparse speed sunlight sunshine travel travelling undulating valleys vegetation bird-colonies birds breeding-place colonies color colors colour colours conservation contrast contrasting crowded dark estuarine-wetlands estuary estuary-waters fence fenced foliage food-supply forested-wetland habitat light low-lying melaleuca-rhaphiophylla migratory-birds nesting nesting-place nests nursery paperbark-trees paperbarks reserve ripples rippling rookeries rookery roosting roosting-place slow-flowing swamp-paperbark tidal trees water waterbird- habitat wetlands wildlife