Birdwatching on Nantucket

Why Nantucket is a Birding Destination

Geography is destiny when it comes to bird migration, and Nantucket's geography is exceptional. The island juts into the Atlantic at precisely the point where migrating birds must decide: continue along the coast or strike out over open water for a direct route south. Many choose to stop and refuel, turning Nantucket into a natural rest area during peak migration.

The island's diverse habitats pack remarkable variety into a small area. Within a single morning's walk, you can traverse sandplain grasslands, coastal heathlands, freshwater ponds, salt marshes, barrier beaches, and maritime forests. Each habitat supports different species, and the boundaries between them often produce the best birding.

Nantucket's isolation works in birders' favor in another way: storms and unusual weather patterns regularly push rare birds onto the island. Vagrants that have strayed far from their normal range often make landfall here, creating excitement in the birding community and drawing enthusiasts from across the region. The island's active birding network means rare sightings are documented and shared quickly.

Perhaps most importantly, roughly half of Nantucket is permanently protected as conservation land. The Nantucket Conservation Foundation, Mass Audubon, the Trustees of Reservations, and the Nantucket Land Bank together manage over 15,000 acres, ensuring that critical habitat remains undeveloped and accessible to both birds and birders.

Key Species by Season

Understanding Nantucket's seasonal rhythms is essential for planning a birding trip. The cast of characters changes dramatically throughout the year, and each season offers distinct highlights.

Spring Migration (March-May)

Spring brings waves of migrants heading north to breeding grounds. Warblers move through in May, often in mixed flocks that challenge even experienced birders. Yellow-rumped warblers are abundant, but look carefully for less common species like blackpoll warblers and northern parulas. Shorebirds begin arriving in April, with numbers building through May. Watch for American oystercatchers returning to nesting territories, their distinctive calls announcing spring's arrival.

Raptors pass through in good numbers, including merlins, peregrine falcons, and the occasional rough-legged hawk. Northern harriers, which also breed on the island, become more visible as they establish territories over the moors. Great blue herons and snowy egrets return to ponds and marshes, while ospreys reclaim their platform nests along Polpis Road and throughout the island.

Breeding Season (June-July)

Summer transforms Nantucket into a nursery. The island hosts significant nesting populations of endangered species, including piping plovers and least terns. These ground-nesting birds claim sections of beach, which are closed to protect eggs and chicks - a small inconvenience that pays enormous conservation dividends.

Common terns nest in colonies at several locations, their aerial acrobatics and dive-bombing attacks on perceived threats adding drama to beach walks. American oystercatchers tend their well-camouflaged eggs on cobble beaches. In the grasslands and heathlands, northern harriers nest on the ground, and short-eared owls occasionally breed in productive years. Listen for the distinctive buzzing of prairie warblers in scrubby areas, and watch for the declining eastern towhee scratching in leaf litter.

Fall Migration (August-November)

Fall is the main event for serious birders. The southbound migration brings birds in spectacular numbers, with shorebird movement beginning as early as late July. By August and September, the tidal flats teem with activity. Sandpipers - semipalmated, least, white-rumped, and pectoral - probe the mud alongside yellowlegs, dunlin, and turnstones. Some of these birds will fly nonstop from Nantucket to South America, making the feeding you're witnessing a matter of life and death.

September and October bring songbird migration. Warblers move through in waves, their numbers peaking after cold fronts push birds southward. This is also prime time for rarities - western vagrants like western kingbirds and Townsend's warblers occasionally appear, as do European species blown across the Atlantic by storm systems. The birding community buzzes with excitement during fall, and checking eBird alerts can lead you to remarkable sightings.

Raptor migration peaks in October, with sharp-shinned hawks, Cooper's hawks, and kestrels moving through in good numbers. Northern gannets appear offshore, and sea watches from exposed points can produce shearwaters, storm-petrels, and jaegers.

Winter (December-February)

Winter brings a different cast of characters. Nantucket Harbor transforms into a haven for sea ducks: common eiders, buffleheads, goldeneyes, and scoters bob on the waves. Red-throated loons and horned grebes fish the harbor, while great cormorants perch on channel markers. Scan carefully - the occasional king eider or harlequin duck rewards patient observers.

Short-eared owls hunt the moors and grasslands at dusk, their buoyant, moth-like flight unmistakable against the winter sky. Snowy owls appear in some years, their arrival generating excitement among birders and photographers. The island's berry-laden shrubs attract wintering fruit-eaters, and unusual species like varied thrush and Townsend's solitaire have been recorded.

Best Birding Locations

Nantucket's compact size means productive birding sites are never far apart. These locations consistently produce excellent sightings:

Coskata-Coatue Wildlife Refuge

Access: Oversand vehicle with permit, Trustees guided tour, or 5+ mile walk from Wauwinet
Best seasons: Year-round, exceptional in summer for nesting birds
Key species: Piping plovers, least terns, common terns, American oystercatchers, shorebirds, sea ducks

This remote 1,117-acre wilderness at Nantucket's northeastern tip is managed by the Trustees of Reservations and represents some of the finest birding habitat on the island. The barrier beaches host significant nesting colonies of endangered piping plovers and terns, with areas closed seasonally to protect them. The undisturbed stretches of beach and salt marsh attract migrating shorebirds, while the waters around Great Point hold sea ducks and seals in winter. The effort required to reach this area - whether by guided tour, long walk, or permitted vehicle - rewards you with remarkable solitude and birding.

Eel Point

Access: Walk from parking area at end of Eel Point Road
Best seasons: Migration periods, especially August-October
Key species: Shorebirds (all species), herons, egrets, terns, raptors

The tidal flats at Eel Point are arguably the best shorebird habitat on the island. At low tide, acres of exposed sand and mud attract feeding flocks that can number in the thousands during peak migration. The mix of species changes daily, and careful scanning often reveals less common birds among the abundant semipalmated sandpipers and plovers. The walk out to the point passes through grassland habitat good for sparrows and harriers. Bring a spotting scope - the birds can be distant, but the variety is exceptional.

Sanford Farm

Access: Walk from parking on Madaket Road
Best seasons: Spring and fall migration, winter for owls
Key species: Northern harriers, short-eared owls, grassland sparrows, warblers, raptors

The Nantucket Conservation Foundation's Sanford Farm encompasses over 780 acres of diverse habitats - moors, forests, meadows, freshwater ponds, and coastal areas along Hummock Pond. The 6.6-mile trail system passes through multiple habitat types, each with its own bird community. During migration, warblers move through the woody areas while raptors hunt the open fields. Winter brings short-eared owls to the grasslands, where they hunt at dusk in their distinctive buoyant flight. The Ram Pasture section, with views of Hummock Pond, is particularly productive.

Nantucket Harbor and Waterfront

Access: Easy - town wharves, Children's Beach, Brant Point
Best seasons: Winter for waterfowl, year-round for variety
Key species: Sea ducks, loons, grebes, cormorants, gulls

Don't overlook the birding opportunities in town. Winter transforms Nantucket Harbor into a waterfowl refuge. Scan from Straight Wharf, Children's Beach, or Brant Point for common eiders, buffleheads, long-tailed ducks, and goldeneyes. Red-throated loons fish in the harbor channels, and great cormorants rest on channel markers and pilings. Gulls gathered at the harbor merit careful study - unusual species occasionally appear among the common ring-billed and herring gulls.

Mass Audubon Sanctuaries

Access: Trails open to public
Best seasons: Year-round
Key species: Varies by sanctuary - waterfowl, songbirds, wading birds

Mass Audubon owns and manages approximately 900 acres on Nantucket, including important sanctuaries at Hummock Pond and Sesachacha Pond. These protected areas provide crucial habitat for breeding, migrating, and wintering birds. The sanctuaries support ongoing research into bird populations, and the data collected contributes to broader conservation efforts. Contact Mass Audubon at (508) 228-2884 for current program information and access details.

Linda Loring Nature Foundation

Access: 110 Eel Point Road, trails open to public
Best seasons: Spring and fall, summer for nesting species
Key species: Grassland birds, sparrows, warblers, raptors

The Linda Loring Nature Foundation protects 86 acres of sandplain grassland, coastal heathland, and vegetated wetland at the Head of Long Pond - some of the rarest habitat types in the world. The foundation's focus on research and education makes it an excellent resource for birders interested in understanding Nantucket's unique ecosystems. Their guided walks and programs offer expert interpretation of the birds and habitats you'll encounter.

Birding Programs and Tours

Several organizations offer programs that enhance your birding experience with expert knowledge:

Maria Mitchell Association

Founded in 1902 to preserve the legacy of Nantucket-born astronomer Maria Mitchell, the association operates a Natural Science Museum and offers nature programs throughout the year. Their naturalists lead bird walks that combine species identification with ecological context, helping participants understand not just what birds are present but why. The association's aquarium and museum provide insight into the marine environment that supports many of Nantucket's birds. Contact them at (508) 228-9198 or visit their facilities at 4 Vestal Street.

Mass Audubon Programs

Mass Audubon, New England's largest nature conservation organization, conducts bird population studies on Nantucket and offers seasonal guided walks on their sanctuaries. Their research contributes to understanding of bird populations, and participating in their programs supports ongoing conservation work. The organization's 900 acres on Nantucket provide protected habitat that benefits both common and rare species.

Trustees of Reservations Natural History Tours

The Trustees offer guided natural history tours of the Coskata-Coatue Wildlife Refuge, providing transportation to this remote area along with expert interpretation. Tours visit the lighthouse, discuss the area's ecology, and offer opportunities to observe nesting shorebirds without disturbing them. For visitors without oversand vehicles, these tours represent the best way to experience Great Point's exceptional birding. Contact the gatehouse at (508) 228-6799 for schedules and reservations.

Nantucket Conservation Foundation

As stewards of over 9,000 acres, the Nantucket Conservation Foundation manages much of the island's best birding habitat. They offer guided nature walks on their properties, including Sanford Farm and other preserves. Trail maps available from their office at 118 Cliff Road help birders explore independently. Their research staff monitors bird populations across their properties, and they participate in island-wide conservation initiatives.

Equipment Recommendations

The right equipment significantly enhances your birding experience. Here's what to consider:

Essential Gear

• Binoculars: A quality pair of 8x42 or 10x42 binoculars is essential. Waterproof models handle Nantucket's maritime conditions well. If you're borrowing or renting, test the focus mechanism before heading out.
• Spotting scope: For shorebirds on distant mudflats and waterfowl on ponds, a spotting scope opens up possibilities that binoculars can't match. A 20-60x zoom with a sturdy tripod works well in most conditions.
• Field guide: Sibley's or Peterson's guide to Eastern birds covers everything you'll encounter. Some birders prefer regional guides for less weight in the field.
• Notebook and pencil: Recording observations improves identification skills and creates lasting memories. Pencil works better than pen in humid conditions.

Helpful Technology

• Merlin Bird ID app: Cornell Lab's free app identifies birds by photo or sound. The sound identification feature is remarkably accurate and helps with distant or hidden birds.
• eBird app: Log your sightings and contribute to citizen science. The explore feature shows recent sightings at locations you plan to visit, helping you know what to look for.
• Camera: Even a smartphone through binoculars can document unusual sightings. Serious photographers will want a telephoto lens of 400mm or longer.

Clothing and Comfort

• Layers: Nantucket's weather changes quickly. Even summer mornings can be cool, and afternoon fog often rolls in unexpectedly.
• Waterproof outer layer: Essential for protection from rain and sea spray.
• Comfortable walking shoes: Many prime birding areas require walking on sand or uneven terrain.
• Sun protection: Hat, sunscreen, and sunglasses. Open areas offer little shade.
• Insect repellent: Mosquitoes and ticks are present, especially in wooded and marshy areas.

Best Times of Day and Year

Time of Day

Dawn is typically the most productive time for birding. Birds are most active in the first hours after sunrise, singing, feeding, and moving about before the day heats up. Arrive at your chosen location as light allows - the first hour after dawn often produces more sightings than the rest of the morning combined.

Late afternoon offers a second window of activity, though generally less productive than morning. However, for shorebirds, tide matters more than time of day. Plan your visits to tidal areas around low tide, when exposed mudflats concentrate feeding birds. Check tide charts in advance - the difference between high and low tide can transform a productive flat into open water.

For owls and crepuscular species, dusk is essential. Short-eared owls begin hunting 30-60 minutes before sunset, and their distinctive flight over the moors is one of Nantucket's most memorable birding experiences.

Time of Year

The peak period for sheer numbers and variety is fall migration, roughly August through October. September is often considered the best single month, with shorebird migration still strong and songbird passage adding diversity. Cold fronts that push through in late September and October can produce exceptional fallout conditions.

For nesting birds, June and early July offer chances to observe breeding behavior, though many beaches are closed to protect nesting areas. Spring migration in April and May brings waves of warblers and other songbirds heading north.

Winter birding appeals to those who enjoy solitude and don't mind cold. The waterfowl spectacle in Nantucket Harbor, combined with the chance for snowy owls and northern finches, rewards hardy birders.

Rare Bird Sightings

Nantucket's position on the Atlantic makes it a magnet for rare and vagrant birds. The island's birding community maintains active communication networks, and significant sightings spread quickly.

Notable Rarities

The island has recorded remarkable vagrants over the years. European species occasionally make landfall after storms, including northern lapwing, European golden-plover, and various gulls. Western vagrants appear during fall migration - western kingbirds, Say's phoebes, and western warblers generate excitement when found. Arctic species like ivory gulls and Ross's gulls have been documented in winter.

Where Rarities Appear

Rare birds can appear anywhere, but certain patterns hold. Storm-blown seabirds are most likely seen from exposed points like Great Point or during boat crossings. Land-based vagrants often turn up at Sanford Farm, the Milestone cranberry bogs, or in residential areas with fruiting trees and shrubs. Shorebird rarities appear among the flocks at Eel Point or other tidal areas.

Staying Informed

Follow eBird alerts for Nantucket County to receive notifications of unusual sightings. The Massachusetts Birding Facebook group and local birding networks share information quickly. If you find something unusual, document it carefully with photos and notes, and report to eBird - your sighting contributes to collective knowledge.

Birding Ethics and Etiquette

Responsible birding protects the birds we come to see and preserves opportunities for others. Follow these principles:

Respect Birds and Their Habitat

• Keep your distance: Use optics rather than approaching. If a bird changes its behavior because of your presence, you're too close.
• Respect closures: Seasonal beach closures protect endangered nesting birds. The piping plovers and terns that nest on Nantucket's beaches need every advantage we can give them.
• Stay on trails: Walking through vegetation can disturb ground-nesting birds and damage fragile habitat.
• Never use playback irresponsibly: Playing recorded calls can stress birds and disrupt natural behavior. If you use playback at all, do so sparingly and never during nesting season or with rare species.
• Don't flush birds for photos: Wait for natural behavior rather than forcing birds to fly.

Respect Other Birders and Property

• Share sightings: Report significant finds to eBird and local networks.
• Don't crowd rare birds: If others are observing a rarity, wait your turn and give everyone a chance to see well.
• Respect private property: Some excellent habitat is privately owned. Always obtain permission before entering.
• Keep dogs leashed: Even well-behaved dogs can disturb wildlife and other birders.

Conservation Through Action

The best birders are also conservationists. Consider supporting the organizations that protect Nantucket's bird habitats - the Nantucket Conservation Foundation, Mass Audubon, the Trustees of Reservations, and the Maria Mitchell Association all accept memberships and donations. Your support helps ensure that the birds you enjoy today will be here for future generations.

Resources for Nantucket Birders

Online Resources

• eBird Nantucket Hotspots: ebird.org - Search for Nantucket, Massachusetts to find recent sightings, hotspot locations, and species lists.
• Mass Audubon: massaudubon.org - Program information and sanctuary details.
• Maria Mitchell Association: mariamitchell.org - Nature programs and educational resources.
• Nantucket Conservation Foundation: nantucketconservation.org - Trail maps and property information.
• Trustees of Reservations: thetrustees.org - Coskata-Coatue access and tour information.
• Linda Loring Nature Foundation: llnf.org - Programs and research updates.

Apps and Tools

• Merlin Bird ID - Free app from Cornell Lab for identification by photo, sound, or description.
• eBird Mobile - Log sightings and access hotspot information in the field.
• Tide charts - Essential for planning shorebird outings. NOAA provides accurate predictions.

Local Contacts

• Mass Audubon Nantucket: (508) 228-2884
• Maria Mitchell Association: (508) 228-9198
• Nantucket Conservation Foundation: (508) 228-2884
• Trustees Gatehouse (seasonal): (508) 228-6799
• Linda Loring Nature Foundation: (508) 228-3286