accommodation angles architecture box-like boxed bricks brickwork building building-construction building-site building-work buildings concrete concreting construction development distinctive elements exterior external gray grey height high home home-units house light linear lines modern perspectives plain second-storey second-story straight structured style suburban two-storey two-story units urban views wall walls windows work background birds brown buff Camouflage camouflaged climate-tolerant common common-pest contrast dark ever-expanding-populations fauna house-sparrows insect-eaters introduced-species Luke 12:6-7 Matthew 10:29-31 mottled Old-World-sparrows passer-domesticus passerine-birds pavement pest plump powerful-beaks prolific seed-eaters small social sparrow sparrows textures true-sparrows two-a-penny worldwide-distribution breadcrumbs climate tolerant ever-expanding populations feeding house sparrows Matthew 10:29 passer domesticus paving african alert biological-interaction bird black broad-mouthed collagen creases curious eating endangered flat-mouthed folds food grazer heavy herbivore herbivorous hide horns inquisitive keratin large mammal Myna myna-birds mynah Noisy placid plumage powerful precocious rhino rhinoceros skin snout square-lipped-rhinoceros strong symbiosis symbiotic threatened tough watchful white-rhinoceros wide-lipped-rhinoceros wrinkled wrinkles abstract art artistic arty backdrop blended blue circles color colored colors colour coloured colours cream decoration decorative design detailed detailed patterns edges geometric geometrical image images interconnected intermeshed interwoven intricate intricate patterns kaleidoscopic patterns mandala orange patterns points purple radiating red shapes sharp texture vibrancy vibrant wallpaper white yellow black-rhinoceros critically-endangered Diceros bicornis herbivorous-browser hook-lipped-rhinoceros lattice-structured megafauna odd-toed-ungulate offspring perissodactyl southern-white-rhinoceros square-lipped rhinoceros surface thick zoo green pink