Green Heron

The Green Heron is a small, compact heron with a dark, glossy greenish-black cap and back, a rich chestnut neck and face, and a greyish belly. It often appears hunched, with a short neck drawn in close to the body, though it can extend its neck surprisingly far when striking at prey.

One of the most remarkable behaviors documented in this species is tool use: Green Herons have been observed dropping bait, such as small twigs, insects, or bread, onto the water's surface to lure fish within striking range, a rare example of tool use among birds.

Key field marks

• Small, stocky build with a short neck typically held drawn in
• Dark, glossy greenish cap and back
• Rich chestnut neck and face
• Bright orange-yellow legs, especially vivid in breeding adults

Similar species

• Black-crowned Night-Heron (juvenile): larger and more heavily streaked brown, lacking the Green Heron's solid chestnut neck
• American Bittern: larger, streaky brown overall, and lacks the glossy green-black cap

Small size, chestnut neck, and a hunched, secretive posture near water's edge are the best clues to identifying a Green Heron.

Range and habitat

Green Herons are found across much of the eastern and central United States, parts of the West Coast, Mexico, Central America, and the Caribbean, favoring shaded, wooded edges of ponds, streams, marshes, and mangroves rather than open wetlands.

Migration

Northern breeding populations migrate south to Mexico, Central America, and the Caribbean for winter, while populations in the southern United States, Mexico, and points farther south are generally resident year-round.

Behavior

Green Herons are solitary and somewhat secretive, typically hunting alone from a low perch or crouched position at the water's edge rather than wading in open water like larger herons; they are notable among birds for occasionally using bait, such as insects or small objects, to lure fish.

Voice

The most familiar call is a sharp, loud "skeow" or "kyow" often given when the bird is flushed or in flight.

Feeding

They feed by patiently waiting, often crouched low on a branch or bank overhanging water, then striking rapidly at small fish, insects, crustaceans, and amphibians; the species' documented use of bait to attract fish is considered a form of tool use.

Nesting and breeding

Green Herons typically nest solitarily or in small loose groups, building a simple stick platform nest in a tree or shrub near water; both parents share incubation of three to five pale greenish-blue eggs.