Are Blue Herons Protected by Federal and State Law?

Yes, blue herons are protected. The Great Blue Heron is covered by the federal Migratory Bird Treaty Act of 1918, which makes it illegal to kill, capture, sell, or possess the bird, its feathers, eggs, or nests without a permit.¹ Most states add their own protections on top of the federal rules. Violations can carry fines up to $15,000 and jail time, even for acts many people assume are harmless.

What Federal Law Covers

The Migratory Bird Treaty Act is the backbone of heron protection in the United States, and the U.S. Fish and Wildlife Service enforces it through its Office of Law Enforcement.² The Great Blue Heron (Ardea herodias) is on the protected list.³

The prohibitions are broad. The statute bars pursuing, hunting, taking, capturing, killing, possessing, selling, purchasing, shipping, or importing any protected migratory bird, along with any part, nest, egg, or product made from one.¹ That reaches live birds, dead birds, loose feathers, eggshell fragments, and abandoned nests under certain conditions. It applies on public and private land alike.

One consequence surprises people: picking up a Great Blue Heron feather from the ground and keeping it is technically a federal offense. A limited salvage provision lets you hold a found feather for up to seven calendar days, but you cannot sell, barter, or permanently collect it.⁴ Taxidermy mounts, bones, and eggshells also require specific permits to possess.

What Penalties Look Like

Most MBTA violations are misdemeanors, punishable by a fine of up to $15,000, up to six months in jail, or both.⁵ Prosecutors do not have to prove you knew the bird was protected or that you meant to break the law. Accidentally destroying an active nest during a tree-cutting project can trigger liability.

Knowingly taking a migratory bird with the intent to sell it, or actually selling one, becomes a felony, punishable by up to $2,000 in fines and up to two years in prison.⁵ The prison exposure and permanent felony record matter more than the fine number suggests. Corporate violators in large-scale unpermitted bird-kill cases have faced penalties reaching $1 million.

What You Can Legally Do About Herons on Your Property

Great Blue Herons near backyard ponds, fish hatcheries, and docks are a common source of conflict. You have legal options, but the line between what’s allowed and what needs a permit is sharper than most people expect.

Scaring Birds Away

You do not need a federal permit to scare or haze herons off your property, provided you don’t injure or kill them. Motion-activated sprinklers, reflective tape, noise devices, and decoy predators are all acceptable. The hazing exemption covers migratory birds generally, with carve-outs for bald and golden eagles and species listed as threatened or endangered. Herons fall within the exemption.

Removing Nests

An inactive nest, meaning one with no viable eggs or live chicks, can be destroyed without a federal permit, but you cannot keep the nest or its contents afterward.⁶ Relocating an inactive nest requires authorization because relocation involves possessing it. Confirming the nest is truly inactive is your responsibility; if it turns out to hold viable eggs and you destroy it, that is an unpermitted take.

An in-use nest is off-limits without a permit. A nest counts as in-use from the moment the first egg is laid until the nestlings have fledged and no longer depend on it. Great Blue Herons nest in colonies called rookeries, sometimes with dozens or hundreds of nests in a single stand of trees, and state law may impose buffer zones around them during breeding season.

Depredation Permits

If herons are causing documented damage to your property, crops, or aquaculture operation and hazing hasn’t solved it, you can apply for a federal depredation permit through the USFWS regional office. The application must describe where the damage is occurring, what is being harmed, the extent of the damage, and which species is responsible.⁷ Even with a permit, lethal action is allowed only if the permit expressly authorizes it, and most permits require you to keep using non-lethal methods first. Your state wildlife agency may require a separate permit.

Permits That Allow Legal Contact With Herons

Legal handling of Great Blue Herons falls into a few narrow categories, each requiring its own federal or state permit.

Scientific collecting permits let researchers capture, band, sample, or in some cases take birds, with detailed study protocols and typically institutional backing.
Rehabilitation permits let licensed rehabbers treat injured or orphaned herons. Federal rehabilitation permits require at least 100 hours of hands-on experience with migratory birds, adequate facilities, and an agreement with a licensed veterinarian. A state rehabilitation license is also required where the state mandates one.⁴
Special-purpose permits cover educational programs, falconry, taxidermy, and similar activities, each with its own eligibility conditions.

There is no general permit or registration for incidental take, the unintentional killing of birds as a side effect of otherwise lawful activities like construction or logging. The USFWS proposed an incidental-take framework in 2021 but has not finalized it.⁸ The agency uses enforcement discretion in the meantime, generally pursuing incidental-take cases only when they involve large-scale or easily preventable bird deaths. That discretion is not a legal guarantee. If you are planning work near a heron colony, contact your regional USFWS office before breaking ground.

If You Find an Injured Heron

Don’t try to care for the bird yourself. Possessing a migratory bird without a permit is illegal even when your intentions are good, and herons can inflict serious puncture wounds with their beaks. Call a licensed wildlife rehabilitator first.⁹ Most state conservation agencies keep directories of licensed rehabilitators online.

Assess before intervening. A heron standing still in your yard is not necessarily injured; these birds can stand motionless for long periods while hunting. Signs of real trouble include visible bleeding, a clearly broken wing or leg, inability to stand, or prolonged shivering. A young heron hopping on the ground near a rookery may be a fledgling learning to fly, with parents nearby. Always call ahead before transporting a bird to a rehabilitation facility.

State Protections on Top of Federal Law

State wildlife laws add layers beyond the federal floor. States cannot weaken MBTA requirements, but they can impose stricter ones, and the specifics vary.

Some states designate Great Blue Herons or their habitat as a species of special concern, triggering additional monitoring and conservation even though the species is not endangered. Some states set mandatory buffer zones around heron rookeries, restricting construction, logging, or other disturbance within a set distance during nesting season. State environmental review may require heron-impact assessments for projects near wetlands or known nesting sites. Violating a state wildlife law can produce separate fines and penalties on top of federal ones.

Before any activity that could affect herons or their habitat, contact both your state fish and wildlife agency and the USFWS regional office. State requirements can be more restrictive and more specific than federal ones, and missing the right state authorization is its own violation.

How to Report a Violation

If you witness someone harming a Great Blue Heron, destroying a nest, or selling bird parts, report it to the USFWS Office of Law Enforcement at 1-844-397-8477.² The agency also accepts tips online.¹⁰ For an incident in progress, your state fish and wildlife enforcement agency or local police can usually respond faster.

When you report, note the location, date, time, what you saw, and any identifying details about the people or vehicles involved. A bystander’s tip is often what makes an investigation work.

1
Office of the Law Revision Counsel. 16 USC 703 – Taking, Killing, or Possessing Migratory Birds Unlawful
2
U.S. Fish & Wildlife Service. Office of Law Enforcement
3
eCFR. 50 CFR 10.13 – List of Birds Protected by the Migratory Bird Treaty Act
4
eCFR. Part 21 Migratory Bird Permits
5
Office of the Law Revision Counsel. 16 USC 707 – Violations and Penalties; Forfeitures
6
U.S. Fish & Wildlife Service. Migratory Bird Permit Memorandum – Authorizations to Take Migratory Bird Nests
7
eCFR. Part 21 Subpart D – Provisions for Depredating, Overabundant, or Otherwise Injurious Birds
8
Federal Register. Migratory Bird Permits; Authorizing the Incidental Take of Migratory Birds
9
U.S. Fish & Wildlife Service. What To Do If You Find a Baby Bird, Injured or Orphaned Wildlife
10
U.S. Fish & Wildlife Service. Speaking Up for Wildlife: How To Report Wildlife Crime