background birds breadcrumbs brown buff Camouflage camouflaged climate tolerant common common-pest contrast dark ever-expanding populations fauna feeding gray grey house sparrows insect-eaters introduced-species Matthew 10:29 mottled Old-World-sparrows passer domesticus passerine-birds pavement paving pest plump powerful-beaks prolific seed-eaters small social sparrow sparrows textures true-sparrows two-a-penny worldwide-distribution advice alert appropriate-behavior appropriate-behaviour black care careful caution communicate communication concern information informing large-vehicles less-noise limitations limited message noise-reduction noise-restrictions Noisy outback residential-area restricted restriction restrictions risk risks risky rural-area semi-trailers sign signs symbols town-boundaries trailers transport transportation trucking trucks vehicles warning warning-sign watch watch-out words acceptable access-denied access-limited advising allocated allocation approved authorised authorized automobiles behave denied directive entry-denied entry-prohibited horses horses-not-allowed horses-not-permitted motor-cars no-access no-entry parking permission-denied permitted prohibited prohibition red safety unauthorised unauthorized white articulated barrel barrels chemical chemicals contaminate contamination corrode corrosion dioxin drum drums dump ecology environment environmental garbage gas gasoline green industrial industry issue issues leak leakage lorry management metal oil petrochemical petrol poison poisonous pollute polluting pollution recycle refine refined refinery rust rusty seep seepage seeping semi spill stare storage substance technology toxic trailer vehicle waste weirdvis all-weather-space Apocynaceae bark caudex caudiciform-plant conservatory display displayed distinctive dome exotics fat-twisted-roots flower-dome fockea-edulis gardens Gardens-by-the-Bay glasshouse gnarled greenhouse grotesque ground-level horticultural horticulture Hottentot-bread indoors plants semi-deciduous shape shaped shapes Singapore South-Africa-native succulent surface surfaces texture tree trunk unusual utilitarian vegetation vine-branches Australia-wide Australian Australian-parrots Australian-pink-cockatoos cockatoo electricity eolophus-roseicapillus familiar friendly galah galahs grass-feeder iconic intelligent like-musical-scale lines observant observing parrot perch perched perching pink-and-grey power-lines resting rose-breasted-cockatoo rose-pink roseate-cockatoo rosies score seed-eater watchful watching widespread wild willock-cockatoos wires Africa America Antarctic arctic Asia atlantic atlas Australia backdrop borders boundaries chart compass continent continental continents countries country dateline earth east equator europe geo geographical geography global globe Indian international latitude longitude map mappa mundi nation national nations navigate navigation north.south ocean oceans pacific planet points polar poles sea seas time travel west World worldwide zone zones abandon abandoned abstract agricultural ancient antique architecture barn battered building copy copyspace crack cracked damage damaged decay decayed derelict dereliction design dirty door down effect element exterior farm grunge grungy house old outside paint peeled peeling retro rough run rural scratch scratched space structure textured wall wallpaper weather weathered wood wooden yellow