cable danger disperse electricity lamp landline old-fashioned overhead line overhead powerline overhead transmission line overhead-cable voltage wires caught dangling hanging loose overhead pair powerlines shoes sneakers backdrop background building central city city colored coloring colors coloured colouring colours contrast contrasting glass wall office block pairs reflections street strung along suspended variety various wall windows Australian beaks birds blue Cockatoos corellas demonstrative destructive docile electrical-supply falconiformes fauna feathers flock garden-pest iconic native Noisy overhead-power-lines perch perching perching-birds pest pet powerpoles root-eater show-off sky suburban tail talker vocal white wildlife cables circuit clouds conduct construction consumer current energy frame framework fuel generation generator grid industry infrastructure line lines metal national network power powerline pylon science service silhouette station steel structure supply electric technology Tension tower transmission Utilities utility volts wire