Herons in Massachusetts: Where to See Them and How to Identify Them

For the best odds, head to coastal marshes and inland wetlands. Top spots include the Great Marsh (Essex County), Parker River National Wildlife Refuge on Plum Island, and Monomoy National Wildlife Refuge on Cape Cod. Inland, the Quabbin Reservoir and Connecticut River Valley floodplains are reliable. Start with the refuge trails or boat launches for easy access. For a full list of birding locations, check our Massachusetts wildlife guide.

Herons are most visible from April through September, with peak activity during spring migration and nesting. Dawn (just after sunrise) is the best time, as herons leave their roosts to feed. Late afternoon also works, especially on overcast days. In winter, only a few Great Blue Herons remain, mainly along the coast where waters stay open.

The most common confusion is between Great Blue Heron and Great Egret. Key difference: Great Blue has a gray-blue body and a striped head, while the egret is pure white with a black bill. Green Herons are much smaller (crow-sized) with a dark green back and chestnut neck. Sandhill Cranes are larger, with a red crown and a bugling call, and they fly with necks straight out, unlike herons that fold their necks in flight. For side-by-side comparisons, see our heron identification guide.

See our state animal guide for the next step.

The Great Blue Heron is the largest and most widespread. The Green Heron is common in wooded swamps and ponds. Black-crowned Night-Heron is a stockier, nocturnal species that roosts in colonies. Little Blue Heron and Tricolored Heron are less common visitors to coastal marshes. Great Egret and Snowy Egret are also frequent and often seen with herons.

Herons are patient hunters that wade in shallow water, spearing fish, frogs, and sometimes small mammals or insects. Look for them standing still at the edge of marshes, rivers, and ponds. They also hunt in tidal creeks and along shorelines. In Massachusetts, they often stalk minnows in the shallows of the Great Marsh or in the backwaters of the Connecticut River.