What to look for in nature in New York this May

Where can you see the warbler and shorebird peak in New York in May?

• Warblers at Montezuma National Wildlife Refuge

  The refuge says warbler numbers peak in mid-May · Seneca Falls, Finger Lakes

  The U.S. Fish and Wildlife Service points birders to the Esker Brook Trails for migrating warblers. The refuge’s Wildlife Drive and Visitor Center are open daily from April 1 through November 30 (the Visitor Center from 10 a.m. to 3 p.m., depending on volunteer staffing), and one section, the Seneca Trail, stays off limits until September for the eagles’ sake, which leaves the Esker Brook paths and the drive for May.

• Shorebirds on the refuge pools

  Common from early May to mid-June at Montezuma · Montezuma and Iroquois refuges

  Montezuma lists shorebirds as common from early May to mid-June, with peregrine falcons hunting over the flocks. Iroquois National Wildlife Refuge in western New York says shorebirds and warblers generally peak in May. Water levels move the birds: a pool with exposed mud will hold more sandpipers than one that is full to the edge.

• Iroquois: goslings, herons and a cerulean warbler trail

  Goslings first appear in May · Iroquois National Wildlife Refuge, near Alabama

  Iroquois reports that goslings make their first appearance in May. The refuge also names a great blue heron rookery along Route 63, south of Oak Orchard Ridge Road, and says cerulean warbler, northern waterthrush and yellow-throated vireo can be found along Swallow Hollow Trail. Staff there lend binoculars and bird guides free.

• Central Park and other city oases

  Audubon says warblers peak in May and early June · Central Park, New York City

  Audubon’s guide to Central Park calls the Ramble the most popular wooded spot for birding, especially along the stream known as the Gill, and adds that Summit Rock, with its treetop views, sometimes gives birders up to ten warbler species in a morning. It recommends arriving by 8 a.m., when birds are most active and the crowds are smaller. The NYC Bird Alliance, the city’s Audubon chapter, runs walks; its calendar for May 2027 was not posted yet, so look there nearer the date.

Where do bobolinks and other grassland birds nest in New York?

• Bobolinks arrive and begin nesting

  Around mid-May, DEC says · Large open fields statewide

  DEC says bobolinks reach New York and start nesting around mid-May in open grasslands and former hayfields with medium-tall grass and few shrubs or trees. A field of 5 to 10 acres is the minimum for successful breeding, and bigger fields hold more pairs. Bobolink numbers have fallen about 2 percent per year across North America since 1966, and in New York cutting hay during the nesting season is the main cause of nest failure. DEC recommends waiting to cut until after August 1, when the chicks have fledged, or mowing from the inside out so adults and older young can escape.

• Washington County Grasslands

  Nesting season runs from May into summer · Fort Edward, Washington County

  DEC’s grassland management area lists bobolink, upland sandpiper, Henslow’s sparrow and eastern meadowlark among the birds to watch for, and part of it is a National Audubon Important Bird Area. The area is free and open year-round, with parking on Black House Road. Stay on the designated trails, and obey any sign that closes a section to protect birds in a critical phase of their lives.

• The Grassland Bird Trust trail

  Annual events; check the organizer · Washington County

  The Grassland Bird Trust protects land for threatened grassland birds and keeps a birding trail through the county. Its 2026 raptor festival was held on a May Saturday, and a spring treasure hunt along the trail ran from May 1 to 15 that year; the group’s 2027 schedule was not out yet, so ask the organizer before planning a trip around either.

What is spawning in the Hudson River in May?

• Atlantic sturgeon return to spawn

  May and June, with DEC monitoring near Hyde Park from mid-May through June · Hudson River Estuary

  DEC says adult Atlantic sturgeon come back to the Hudson to spawn in May and June, then return to the ocean, while juveniles stay in the river for two to six years. The species can reach 14 feet and 800 pounds. NOAA Fisheries listed Atlantic sturgeon as endangered in 2012, and recreational and commercial fishing for them is prohibited in the Hudson River and the Marine District of New York. A 2024 stock assessment update suggests the coastwide population has probably risen since the 1998 fishery closure but remains far below historic levels. If you catch one by accident, release it carefully and report it to DEC. Do not handle a dead sturgeon; report it through DEC’s Marine Life Incident Report survey.

• The end of the shad and river herring runs

  DEC’s spawning-stock surveys run April through June · Hudson River

  DEC’s Hudson River Spawning Stock Survey samples American shad from April through June with a haul seine and an electrofishing boat, measuring and tagging fish before returning them. For river herring (alewife and blueback herring), the surveys cover April through early June. Fishing for shad is prohibited in the Hudson River and the Marine District, and all Hudson shad fisheries closed in 2010, so any shad you catch by accident has to go back at once.

• Eagles on Peebles Island

  A May 21 Almanac entry from Waterford · Waterford, Capital Region

  The Hudson River Almanac, DEC’s weekly natural history newsletter built from volunteer observations, includes a May 21 entry from Waterford that describes a bald eagle nest on Peebles Island “nearly fully camouflaged by leafy branches,” with three nestlings verified and the adults perching across the river to watch. The lesson for May is that leaf-out hides nests, so scan with binoculars from a respectful distance and watch the adults rather than the tree.

Which birds and animals are raising young in New York in May?

• Piping plovers on Long Island sand

  Eggs are laid in May and June, DEC says · Ocean beaches such as Fire Island

  DEC says plovers arrive in early to mid-March, lay about one egg every other day until a clutch of around four is complete, incubate for 25 to 31 days, and need 28 to 35 days after hatching before the chicks can fly. DEC puts about 200 pairs of the Atlantic Coast’s roughly 800 pairs in New York, based on recent surveys. At Fire Island National Seashore, the Park Service says courtship and mating run from late March to early June and that pets, driving and kites are restricted on parts of the ocean beaches in nesting season; where dogs are allowed, they must be leashed. Stay out of the string fencing along the upper beach, and give a running chick room.

• Loons on northern lakes

  Two eggs are laid between mid-May and June · Lakes in the northern part of the state

  DEC advises staying back from nesting loons and loons with chicks, whether you are on land or in a boat. It also says boating that disrupts nest sites and nursery areas should be kept away from them in the breeding season. If a loon calls loudly or splashes toward your boat, back off.

• Ospreys and bald eagles

  Osprey young fledge at about eight weeks; eaglets leave the nest at about twelve · Platforms and tall trees near water

  DEC says ospreys lay one to four eggs, usually three, and that nests are reused each year and can grow up to ten feet high. For bald eagles, DEC’s guidance defines the breeding season as January 1 to August 31 and says young leave the nest at around 12 weeks, in mid to late summer. Its distance table asks that activities within 660 feet of a nest be discussed with the U.S. Fish and Wildlife Service first; drones and aircraft have a larger distance of 1,000 feet. In plain terms: use a spotting scope and keep your drone at home.

• Wild turkey hens on the nest

  Eggs hatch after about 28 days, usually late May or early June · Woodland edges and fields statewide

  DEC says the breeding season runs from early April to early June, and that hens nest alone and lay 10 to 12 eggs. Young turkeys can fly at about two to three weeks old. A hen that flushes from the ground near a trail may be leaving a nest, so back away quietly.

• Fawns and other baby animals

  Spring and early summer · Statewide

  DEC’s guidance on watching wildlife says to leave wild baby animals where you find them, keep quiet, move slowly and be patient. Do not feed wildlife. A young animal alone is usually waiting for a parent that is feeding nearby.

Which frogs and toads are calling in New York in May?

• Gray treefrog

  Breeding from late April to July, DEC says · Beaver ponds and red maple swamps

  DEC’s guide describes a hearty trill, often sung from high in a tree near the breeding wetland. Adults gather at semi-permanent wetlands, usually beaver ponds and red maple swamps. You are more likely to hear a gray treefrog than to see one.

• Green frog

  Breeds from May to August · Ponds, marshes and lake edges

  The male’s call sounds like plucking a loose banjo string. DEC’s guide notes the dorsolateral ridges that run down its back, which help tell it from the larger bullfrog. Bullfrogs breed later, starting in June, and the northern mink frog breeds from June to early August.

• Eastern spadefoot after hard rain

  April through September after intense storms · Sandy soils, including Long Island

  DEC lists the eastern spadefoot as a Species of Special Concern. It breeds in temporary pools formed after intense rainstorms, and its voice is a coarse, repetitive “wank, wank, wank.”

What blooms in New York in May?

• Woodland wildflowers

  May at Brooklyn Botanic Garden · Woodlands, preserves and botanic gardens

  The Garden’s May bloom list includes yellow trout lily, white wake-robin (the trillium), mayapple and spotted geranium, plus Canadian columbine, moss phlox, eastern shooting star, flame azalea and golden ragwort. Eastern redbud, flowering dogwood and fringe tree are the notable May trees. Bloom comes later in the mountains and the north, so treat the list as a sequence rather than a calendar.

• Lilacs in Highland Park

  Rochester Lilac Festival, May 7 to 16, 2027 · Highland Park, Rochester

  The festival organizers say the 129th Rochester Lilac Festival will run May 7 to 16, 2027, in Highland Park, which they call home to the world’s largest collection of lilacs. They did not give a bloom forecast, and lilacs follow the weather, not the festival schedule, so check the bloom report before you go. The Garden’s May list also names lilacs, including the cultivars ‘Sensation’ and ‘Vesper Song’.

• Pink lady’s slipper

  The Forest Service says it flowers from May through July across the East · Acidic woods of pine, hemlock and birch

  The U.S. Forest Service describes this orchid as growing in mixed hardwood and conifer stands on rocky or mossy slopes with deep humus and acidic, well-drained soil. Its seeds depend on a soil fungus to germinate, and the agency says harvesting wild lady’s slipper roots is not sustainable. Look, photograph and leave it where it grows.

• Track the green-up

  Leaf-out reaches the north in May · Statewide

  The USA National Phenology Network publishes a Spring Leaf Index and Spring Bloom Index based on recent temperatures, using lilac and honeysuckle as stand-ins for the start of spring, and invites anyone to record observations in Nature’s Notebook, including through a cloned and common lilac campaign. Your notes help check the model.

When is the last spring freeze in New York?

• The north stays risky longest

  Into the third week of May · North Country, Southern Tier

  In the table, Plattsburgh’s nine-years-in-ten date is May 19 and Binghamton’s is May 18. Rochester and Buffalo are done with freezing by about May 8 to 9 in nine springs out of ten, while Montauk and the city finish in April. Higher ground, such as the Adirondacks and Catskills, can lag all of these stations.

• Use the frost page for your own town

  Any time · Statewide

  Look up your own town on the New York frost page. A cold clear night after a warm day is the setup for a late freeze, so check the forecast and cover tender plants whatever the calendar says.

How warm and stormy is May in New York?

• Thunderstorms, tornadoes and flash floods

  Severe weather risk continues from spring into summer · Statewide

  According to NWS Buffalo, New York averages six tornadoes a year, along with about 400 severe thunderstorm warnings, 17 tornado warnings and 150 flash flood warnings. The office names flooding as the greatest threat to life and property among the state’s hazards, and stresses that every thunderstorm produces dangerous lightning.

• The burn ban ends May 14

  March 16 through May 14 · Statewide

  DEC’s statewide ban on residential brush burning runs every year from March 16 through May 14, and its March 2026 notice repeated those dates. DEC ties the ban to a simple fact: backyard debris fires start more spring wildfires than anything else. Small cooking fires and campfires in modest pits are still allowed, and burning garbage or leaves is banned all year.

How much daylight does New York gain in May?

What can you see in the New York night sky in May 2027?

• The Eta Aquariids at new moon

  Best mornings May 5, 6 and 7 before dawn · Any dark site with a view to the east-southeast

  The new moon on May 6 means almost no moonlight, which is why this is an excellent year for the Eta Aquariids. Its season stretches from about April 19 to May 28. SeaSky names the night of May 6 into May 7 as the peak, and our own arithmetic lands a day sooner, so any of three pre-dawn watches (May 5, 6 or 7) is reasonable. SeaSky quotes up to about 30 meteors an hour across the Northern Hemisphere in ideal conditions. New York sits well north of the shower’s best latitudes, and the source point in Aquarius clears the horizon late, leaving a short window before dawn, so expect fewer: lie back, give it an hour and be patient.

• The Flower Moon, also a seasonal Blue Moon

  Full at 6:59 a.m. EDT on Thursday, May 20; look on the evening of Wednesday, May 19 · Eastern horizon at moonrise

  The Moon turns full at 6:59 a.m., not long after sunrise, so the better show is moonrise on the evening of May 19, about 7:52 p.m. in New York City. Folklore calls the May moon the Flower Moon, and this one lands in the middle of lilac season. Astronomical spring 2027 has four full moons; the third, on May 20, is the one the older seasonal rule calls a Blue Moon; the modern two-in-one-month rule gives none in 2027. Neither name changes the Moon’s color.

• Mercury in the evening

  Greatest elongation May 28, best evenings about May 12 to June 5 · Low in the west-northwest after sunset

  Mercury sits 22.9 degrees from the Sun in the evening sky on May 28, at greatest elongation, per SeaSky. Our calculations make mid-May to early June the window, with the planet low in the west-northwest roughly 45 to 90 minutes after sunset, and its best evening appearance of 2027 for northern observers. Start with a clear horizon and binoculars; a planet shines without twinkling.

• Jupiter and the Moon, and a faint pairing before dawn

  Evening of May 12; morning of May 7 · High in the evening sky; low in the east before sunrise

  On the evening of May 12 our calculations place a half-lit Moon right beside Jupiter, easy to find without optics. Around May 7, Venus and Saturn sit less than a degree apart low in the east before sunrise, but they are so close to the horizon that you will want binoculars and an open view.

What can New York families do outdoors in May 2027?

• City Nature Challenge

  Observations April 30 to May 3; identifications May 4 to 16; results May 20, 2027 · Participating cities and regions

  The organizers’ 2027 dates are posted. Participants photograph or record sound of wild plants and animals in their area, upload to iNaturalist or the region’s chosen platform, and help identify what others found. Not every region takes part, so check the challenge’s city list.

• World Migratory Bird Day

  Held each May; no 2027 date posted yet · Refuges, parks and nature centers

  The organizers hold the North American celebration each May (it was May 9 in 2026), but they had not posted a 2027 date, theme or event list, so check the official site and ask local refuges and Audubon chapters.

• Lights Out for migrating birds

  Spring migration, March 1 to June 15 on BirdCast · Any building with night lighting

  BirdCast says over 80% of the continent’s migrants fly at night, and that bright lights plus glass along their route can kill. Switching off decorative and unneeded lights on big migration nights costs nothing.

Safety notes for May in New York

• Ticks

  Active whenever temperatures are above freezing · Woods, brush, tall grass and leaf litter

  The state Department of Health recommends long pants and long sleeves in wooded or grassy areas, a repellent with DEET, picaridin or IR3535, frequent tick checks, a shower soon after coming indoors, and about ten minutes in a hot dryer for the clothes you wore. To remove one, grip it with fine-point tweezers close to the skin and pull straight up. Lyme disease is spread when a tick stays attached for 36 hours or more; the most common sign is an expanding or bull’s-eye rash, and fever, chills, aches or fatigue can follow within 30 days.

• Spring turkey season

  Recent seasons have opened May 1 and run through May; check the 2027 dates in DEC’s regulations guide · Wooded edges statewide

  In spring only bearded birds may be taken, DEC says (the season dates are set each license year), with hunting from 30 minutes before sunrise until noon and a limit of two bearded birds for the season, one a day. A hunting license and a turkey permit are required. DEC recommends orange when you walk into and out of the woods and an orange item hung on a tree beside your calling spot, and it tells hunters to avoid wearing red, white or blue. If you hike in turkey woods in May, a bright orange hat or vest is cheap insurance.

• Moose calves

  Born in late May or early June · Adirondacks

  DEC says moose calves are typically born in late May or early June, after a pregnancy of about 230 days, and weigh 20 to 25 pounds at birth. The department estimated roughly 600 to 700 moose in the Adirondack region as of 2018. DEC says the best way to avoid hitting a moose is to slow down, especially from dusk to dawn.

• Turtles crossing roads

  May and June · Roads near rivers and marshes

  DEC says native turtles are on the move in May and June, looking for sandy areas or loose soil to lay eggs, and that vehicles kill thousands of them every year. Slow down near water. If it is safe to stop, move a turtle to the shoulder in the direction it was facing, hold most turtles at the sides of the shell, not the tail, and take extra care with snapping turtles. Do not take a turtle home: native turtles are protected and cannot be collected without a permit.

• Fishing seasons

  Trout harvest season has been open since April 1; stocking runs into early June · Streams and lakes statewide

  DEC’s trout news says stocking runs from March into early June. Seasons and limits for other fish vary by species and water, so check the current regulations guide, and confirm the 2027 rules when DEC posts them.

• Black bears and bird feeders

  Spring, when natural foods are scarce · Adirondacks, Catskills and beyond

  DEC says about 50 to 60 percent of New York’s bears live in the Adirondacks and 30 to 35 percent in the Catskills, with well-established populations in Tug Hill, the Hudson Valley and the Southern Tier. Feeding bears on purpose is illegal, and bird seed is on DEC’s list of foods that draw them, so take feeders in at night and keep garbage and camp food sealed.

• Trail conditions

  DEC issues advisories each spring · Adirondack High Peaks and other high trails

  DEC’s spring conditions advisory for the Adirondacks, issued in March 2024, urged hikers to avoid trails above 2,500 feet while thin snowpack, icy “monorails” and post-holing made footing unreliable. At low elevations it warned of ice, thick mud, flooded areas and slush. It advises walking through mud rather than around it to limit erosion, avoiding stream crossings in high water, because cold water can cause fast hypothermia, and carrying the ten essentials. That advisory was for that year; each spring DEC posts a fresh one and weekly backcountry updates, so check before you go.