A Season Built Around a National Natural Landmark

The Bird Sanctuary: New Jersey’s First National Natural Landmark

Per Wikipedia, herons began nesting naturally in what is now Stone Harbor around 1938. The borough formalized protection with a local ordinance in 1947, setting aside a 21.5-acre tract as the Stone Harbor Bird Sanctuary, and the town fenced the site in 1961. In October 1965, the sanctuary was designated New Jersey's first National Natural Landmark -- a genuine federal recognition, not a marketing label, and one that predates most of the recreational infrastructure built along this stretch of the Jersey Shore.

The sanctuary sits close to Nummy Island's salt-marsh feeding grounds and combines dense vegetation, a freshwater pond and meadow, and maritime forest -- a real habitat mix rather than a single, simple stand of trees. Visitors walk a fenced perimeter path rather than an open trail through the nesting core, consistent with its purpose as a protected rookery rather than a park built primarily for foot traffic.

5,000 Birds a Year: The Peak, Confirmed by Wikipedia

By 1964, per Wikipedia, more than 5,000 birds arrived annually to nest at the sanctuary, typically beginning in March and continuing through July, with birds remaining on site until as late as December. Historic nesting species documented there include snowy egrets, glossy ibis, black-crowned and yellow-crowned night herons, little blue herons, green herons, and tri-colored herons -- a genuine wading-bird rookery of real regional significance, not a generic description of coastal birdlife.

That 1964 peak is the high-water mark against which the sanctuary's later crisis, and its slow recovery, are measured. It is also why the National Natural Landmark designation followed just a year later, in 1965 -- the site was already a documented, large-scale nesting colony by the time it earned federal recognition.

The Mystery: A Near-Total Disappearance Beginning in 1995

The sanctuary's history is not a straight line of success. Per Wikipedia, nesting shorebirds began to mysteriously disappear from the site starting around 1995, and the colony had nearly vanished by 2000. The source describes the disappearance as mysterious rather than attributing it to a specific documented cause, and this page does not speculate beyond that -- no specific cause such as predation, pollution, or disease was confirmed in this research pass, and none is invented here.

A colony that had drawn more than 5,000 birds a year within living memory of many longtime residents falling silent within five years is a genuine, dramatic local event, and it is the reason the sanctuary's recovery effort matters as much as its original designation.

The 2005 Rejuvenation Project and What Visitors Find Today

In response to the disappearance, per Wikipedia, a 2005 rejuvenation project increased tidal water flow through the site, removed invasive plant species, and removed feral cats -- three concrete, documented interventions aimed at restoring the habitat rather than a vague restoration effort. Later surveys have documented warblers, woodpeckers, and hawks using the site, indicating a working, if changed, habitat rather than an abandoned one.

We did not independently confirm current nesting-population counts, current visitor hours, or any admission cost for the sanctuary this research pass -- Wikipedia's own entry did not state these figures, and none are invented here. Confirm current hours, access rules, and any seasonal closures directly with the Borough of Stone Harbor before planning a visit, particularly during the March-through-July nesting window.

A Season Shaped by an Upscale Resort Identity

Recreation in Stone Harbor plays out against a genuinely upscale backdrop. Per Wikipedia, The New York Times has described the borough as a place of "gleaming McMansions and elegant shops," it ranked as the third-most-expensive ZIP code in New Jersey by median home sale price in 2017, and Forbes ranked it 191st among America's most expensive ZIP codes nationally in 2014. The town's summer population exceeds 20,000, against a 2020 census year-round population of just 796 -- a seasonal community that Wikipedia describes as typically wealthier than its own year-round residents.

That means a day built around the Bird Sanctuary here often sits alongside a noticeably upscale shopping and dining district, distinct from the more boardwalk-driven recreation model found in the neighboring Wildwoods. We did not confirm specific current restaurant, shop, or business names this research pass, and none are invented here.

Founded With Avalon by the Same Company in 1887

Stone Harbor's recreational identity is also shaped by how the town came to exist. Per visitnjshore.com, Aaron Leaming acquired Seven Mile Island in 1772 for roughly $300, and the Tatham family later purchased the island in the 1800s and built its first beach houses. The Seven Mile Beach Company then purchased the island in 1887 and founded both Avalon, on the island's northern half, and Stone Harbor, on its southern half, from that single corporate entity.

Stone Harbor's own development began in 1891 with an inn and seven cottages near 80th Street. Major infrastructure work followed in 1907-1909 -- leveling dunes, filling marshes, paving streets, building seawalls and jetties, and installing a sewage system -- and 1910-1912 brought the town's first school, lifeguard service, police force, and volunteer fire department. The borough was incorporated in 1914. Stone Harbor's own name is credited to an English sea captain named Stone, who reportedly took shelter behind Seven Mile Island during a severe storm.

What We Did Not Find, and Why That Is the Honest Story

This research pass confirmed, via Wikipedia, the Stone Harbor Bird Sanctuary's 1938 natural nesting origins, its 1947 ordinance establishing a 21.5-acre protected area, its 1961 fencing, its October 1965 designation as New Jersey's first National Natural Landmark, its 1964 peak of more than 5,000 annual nesting birds, the March-through-July nesting season with birds remaining until December, its historic wading-bird species list, the disappearance of nesting shorebirds beginning around 1995 and its near-total vanishing by 2000, the 2005 rejuvenation project's tidal-flow, invasive-species, and feral-cat interventions, and later surveys documenting warblers, woodpeckers, and hawks. It also confirmed the borough's affluent identity via The New York Times and 2017/2014 ZIP-code rankings, and the Seven Mile Beach Company's 1887 founding of both Avalon and Stone Harbor via visitnjshore.com.

It did not confirm: the specific cause of the 1995-2000 shorebird disappearance; current sanctuary visitor hours, admission cost, or current nesting-population counts; current (2026) permanent population figures beyond the 2020 census count of 796; current median home prices, active listing counts, or rental rates; current New Jersey state sales tax or Cape May County property tax rates; specific current flood zone designations for individual Stone Harbor parcels; or specific current restaurant, shop, or business names. None of those figures are invented here -- confirm them directly with the Borough of Stone Harbor, Cape May County government, the State of New Jersey, or FEMA's Flood Map Service Center as applicable.

New Jersey, Not Delaware: A Different Tax Backdrop

Stone Harbor is this site's fifth New Jersey market, following Cape May, Wildwood, Wildwood Crest, and North Wildwood, and that matters beyond geography. New Jersey's state sales tax and its municipal and county property tax structure are genuinely different from the no-sales-tax framework used across the Delaware markets already built on this site. No specific current New Jersey sales tax rate or Cape May County property tax rate is stated here.

Confirm current tax rates and assessment figures directly with Cape May County government, the Borough of Stone Harbor's own finance office, and the State of New Jersey. Nothing here should be read as carrying over Delaware's tax framework to Stone Harbor.

What This Means for Planning a Visit

A realistic Stone Harbor recreation day looks like this: time at the Bird Sanctuary taking in a genuinely dated 1947 protected habitat and New Jersey's first National Natural Landmark, an appreciation for its documented disappearance-and-recovery story rather than a static nature-walk brochure, and an afternoon in a noticeably upscale shopping and dining district that sets this town apart from the boardwalk-driven Wildwoods to the south. That is a real, documented recreation identity -- sanctuary first, upscale resort character second -- and it lines up with what actually makes Stone Harbor distinct among Cape May County's shore towns. For current sanctuary hours, access rules, and any seasonal nesting-period closures, check directly with the Borough of Stone Harbor before finalizing plans.