angry common water monitor lizard malayan monitor water monitor Australian Australian pelican band banded beak bill bird color colored colorful colors colour coloured colourful colours fauna feathers large leg band monitored monitoring pelecanus conspicillatus pelican powerful resting strong water bird widespread wildlife black claws ear eye head jungle leg monitor lizard pair Philippine predator reptile scales two varanus water yellow zoo anchored buoy data-collecting-buoy dissolved-oxygen electronic-data-transfer estuarine estuary fish-kill-mitigation floating-device fresh-water improving-understanding monitoring-buoys moored oxygen-levels salinity salt-water scientific-advisory solar-panel solar-powered stationary tidal tide water-quality water-quality-management activities angles architectural-elements architecture chemical-sanitation chlorinated covered exercise filled full glass heated hot-tub hydrotherapy indoor-pool indoors inside interior jacuzzi leisure light lighting lit maintained paddling-pool recliners reclining recreation reflections relaxation sanitized seating shelter sheltered spa-pool swimming swimming-bath swimming-pool undercover wading-pool warm windows