portrait of a grey heron standing on the river bank on the lookout for something to eat like a fish of frog

grey heron pond nature marsh lake water wildlife river bird animal predator reed plumage hunting beak ardea riverside scavenger natural shore standing stealthy wild swamp vegetation wader feather long leg abundant lookout green blue stealth ducklings bank ambush pool fish estuary fauna gray hunter frogs predatory waterside widespread portrait eat like frog frog predators swallow ecosystem