Adult great egret (Ardea alba egretta) feeding at low tide in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

great egret galapagos islands low tide feeding behavior wildlife birdwatching nature ecology marine environment south america ecuador wetlands shorebird foraging coastal habitat biodiversity animal behavior elegant white feathers natural habitat aquatic ecosystem wading bird coastline sea grass rocky shore crab shallow water estuary bird feeding avian species coastal ecology animal habitat natural foraging prey ecosystems marsh ecological balance wildlife conservation bird habitat observer species identification endangered species feeding pattern habitat preservation