advice alert allowed announcement appropriate-behavior appropriate-behaviour black canine care careful clean-up communicating communication consideration control controlled denial denied directions dog dogs exception guidelines information informing lead leash pedestrians permission-granted pets purple risk risks rules safety sign signs track walk walkers walking welcome white approval approved bush-reserve concern conservation conserve inform natural nature not-allowed not-permitted observation observe park permission-denied permitted prohibited prohibition prohibitions protect protection public-park red restrictions warning warning-sign area attention banned blue boundaries boundary cigarettes danger direction directive distance distinctive entrance environment health health-risk limits location no-smoking painted pollution shopping-center shopping-centre symbol unhealthy wording words behave behavior behaviour birds caution communicate ducks fatal feed feeding food message no-bread restricted restriction signage water-birds watrer-fowl penalties penalty thick thin circles dangerous disapproval disapproved messages pictograms public symbols access-denied access-limited entry-denied entry-prohibited keep-off limited-access no-access no-entry prosecution trespass trespassing unauthorised unauthorized avoid damage demolition destruction hazard hazardous keep-out requirements risky unwanted be-careful beware crocodiles crocs no-swimming swimming unsafe water