background black and white concrete floor gray grey rough square texture tile aggressive Australian birds chroicocephalus novaehollandiae common gray and white grey and white gulls Larus novaehollandiae Noisy prolific resting river river's edge riverside sand scavengers screeching seagulls sepia silver gull standing wading waiting watching brown bushes Fishing Vest Fly Fishing forest grass green hat line pine trees reflection Rod and Reel sky Wadders white adaptable alert aloof appearance appearances carnivorous cat collar comfortable companionable domestic domesticated eyes felid feline felis-catus gray-and-white grey-and-white house-cat independent mammal pet popular positions posture postures reclining relaxing social stretched tag various-expressions warm whiskers felis catus house cat various expressions adolescent bird bird feeding grassed area gymnorhina tibicen insectivore lookout Magpie mottled plumage protective sharp sharp eyed swoop swooping territorial watchful cascading chroicocephalus-novaehollandiae city colors colours cool cooling edge edges edging flow flowing fountain Larus-novaehollandiae levels light multi-level reflecting ripples rippling seabirds silver-gull splashing water waterbirds