What to look for in nature in Idaho this March

What is waking up in north Idaho’s wetlands in March?

• Open water, and a duck peak

  Mid-March, when most ponds have lost their ice · Kootenai National Wildlife Refuge near Bonners Ferry

  The refuge’s wildlife brochure puts the mallard and pintail migration at its peak in mid-March, with Canada geese beginning to nest. Tundra swans have been arriving since late February. Watch from a pullout, stay in the car where you can, and let binoculars do the reaching. The refuge page says road improvements on Riverside Road close the auto-tour route to motor vehicles until the work is finished in fall 2026, so phone the office, (208) 267-3888, before planning a loop. Bear spray is on the refuge’s packing list.

• Trillium opens as the snow pulls back

  Late March, as the first mountain bluebirds pass through · Forest edges and shaded slopes on and near the refuge

  The same brochure ties two signs together: trillium begins to bloom in late March as the snow recedes, just as mountain bluebirds migrate through. Look for three broad leaves and a white, three-petaled flower, and admire it from the trail. The refuge expects ospreys and the start of bald eagle nesting in early April, then drumming ruffed grouse and winnowing snipe by mid-April.

• Wood ducks go house hunting

  As spring arrives, once pairs formed in autumn reach their territories · Wooded ponds, marshes and creeks; some northern birds winter farther south

  Wood ducks nest in tree cavities, such as old woodpecker holes, and will use nest boxes. Scan dead snags over water for a pair circling a cavity, and keep your distance so the female is not scared off the hole.

Where can you watch sage-grouse dance on a lek in Idaho?

• The morning show

  Spring mornings around first light; the weeks depend on weather and elevation · Sagebrush flats across southern and eastern Idaho; the same leks are used for many years

  Leks are small open patches where males gather for the hens, and the shows are at their best at first light. Because the birds return to the same leks year after year, biologists count the males each spring to follow the population. Expect snow, mud and a late start in a cold spring, and plan a patient second try.

• How to watch without disturbing the birds

  Arrive in the dark; stay until the grouse leave · From a vehicle on a public road, or on an organized tour

  The Sage Grouse Initiative, a USDA program, asks viewers to reach a lek at least an hour before sunrise, park well back from its edge, switch off the engine and lights, stay in the vehicle with binoculars or a scope, avoid loud noises and sudden movements, and wait for the birds to leave first. Pets stay in the vehicle or at home, and private land stays off limits. It calls late April the best time to visit, because most mating is finished while males are still strutting, which makes March the early edge of the season.

• Forest grouse start up too

  Ruffed grouse usually drum in April and May · Mixed forest in northern, central and southeastern Idaho

  Forest grouse do not use leks. A male ruffed grouse beats his wings so fast that the drumming is a low thump people often feel before they hear it. The Kootenai refuge’s seasonal calendar places drumming in mid-April, so in March you are early; listen for it in April and May.

Which raptors are back at the Snake River Birds of Prey in March?

• A mid-March window

  The guide rates viewing best in mid-March, May and June, early and late in the day · Dedication Point Overlook and roads over the plateau

  The guide suggests binoculars, a field guide and ideally a scope, and a visit when raptors are actively hunting. It adds that April viewing slows down because incubating birds sit tight. Fence posts and utility poles are the first places to scan.

• Burrowing owls return

  Listed in the area from March through August · Open ground on the plateau

  This is the one small owl you can see out in the open in daylight, and the guide notes that it nests and roosts in abandoned animal burrows. Scan mounds and fence posts for an upright, long-legged bird. The guide adds that young of several ground nesters here, burrowing owls among them, are often found on the ground later in the season and should be left alone.

• Eagles and owls that never left

  Year-round · Cliffs, rim rock and power poles

  Golden eagles and great horned owls stay all year, so even a raw early-March morning can reveal a nesting pair. The Peregrine Fund’s World Center for Birds of Prey puts live raptors on show daily. Its page lists March-through-November hours as Tuesdays to Sundays from 10 a.m. until 5 p.m. (last entry 4:15 p.m.), adding Mondays from Memorial Day. Call 208-362-8687 to confirm.

Where do sandhill cranes and snow geese stop in eastern Idaho in March?

• Camas National Wildlife Refuge

  March through mid-May is the peak of waterbird migration · Camas NWR, near Hamer, off Interstate 15

  The refuge’s species guide says up to 15,000 to 20,000 snow geese may be present at once at the height of their movement, with tundra and trumpeter swans arriving alongside and ducks following. But look at the refuge’s notice first. The refuge’s web page warns that Camas Creek flow was about 75 percent below average the previous year, that winter precipitation and snowpack were among the lowest on record, and that curtailed groundwater wells could leave the wetlands completely dry. A dry refuge holds few birds, so call before driving.

• Market Lake Wildlife Management Area

  Spring migration; marshes and dikes close to entry April 1 · Near Roberts, in the Upper Snake

  Fish and Game says more than 1 percent of the whole snow goose population stops at Market Lake in spring, and a wildlife blind allows viewing without entering the marshes, which are closed April 1 through July 31.

• Grays Lake and Bear Lake

  Cranes reach the breeding grounds and begin to court in spring · Grays Lake NWR north of Soda Springs; Bear Lake NWR near Montpelier

  Grays Lake is a 22,000-acre bulrush marsh that the refuge says holds the largest breeding population of sandhill cranes in North America. It is a long way from most services, so plan fuel and food. Bear Lake National Wildlife Refuge, 18,000 acres of cattail marsh and flooded meadow, lists cranes and trumpeter swans among its migrants.

• Fort Boise, as it ends

  The flocks usually leave by early April · Fort Boise WMA near Parma

  The spring light goose season in southwest Idaho ends March 10, and the area manager has said that when the geese decide to leave, they are gone. If the ponds are still full in early March, go; by the end of the month they may be empty.

Which frogs, fish and waterbirds are on the move in Idaho’s waters in March?

• Columbia spotted frogs

  After the snow melts and the water warms; the timing shifts with elevation and the spring · Ponds, springs, marshes and slow streams across northern Idaho and the southwest corner; not on the Snake River Plain

  Fish and Game says spotted frogs breed once the snow has melted and the water warms. Males gather in shallow water and call during the day, and the eggs are laid in a ball-shaped mass of jelly. Timing shifts with elevation and the spring, so watch without handling, since the jelly must stay wet.

• Pacific chorus frogs come next

  North Idaho listeners say mid-April to early May · Ditches, ponds and yards in the Panhandle

  A Fish and Game blog calls Pacific chorus frogs one of the first sounds of spring in north Idaho and says they sing for a few weeks beginning in mid-April, after dusk. In March expect silence on cold nights, and keep a note of the date of your first call.

• Steelhead spawning in the Clearwater

  Most spawn in March and early April · North Fork Clearwater below Dworshak Dam, and the main Clearwater below it

  A Fish and Game regional manager has said most of the river’s steelhead spawn in March and early April, gathering near the places they were released. This year’s run was historically poor: the agency’s September 15, 2026 update says the count at Bonneville Dam was the weakest on record there, with a two-fish daily limit statewide and only one fish over 28 inches on the Clearwater. Spring 2027 rules had not been published when we wrote this, so read the current rules before fishing.

What wildflowers bloom in the Boise foothills in March?

• Violets, milkvetch and prairiestars

  Mid-March to early April, according to a naturalist’s trail guide · Lydle Gulch, a short walk near Lucky Peak Dam and Foote Park

  The Treasures of the Boise Front guide lists what is blooming, or about to, on its Lydle Gulch route: Beckwith’s violet (sagebrush pansy), woolly-pod milkvetch, sagebrush buttercup, miner’s lettuce, the bulbous woodland star called prairiestar, narrowleaf biscuitroot, dwarf pussytoes and Bolander’s yampah. The trail is about two miles round trip with modest climbing, and the heavy clay soil turns to gumbo when wet, so choose a dry or frozen morning and stay on the path.

• The yellow bell

  Early to mid-spring, soon after the snow · Dry slopes in the foothills and at mid elevations

  The nodding yellow bell (Fritillaria pudica) is on the same Lydle Gulch list and hangs a single yellow bell from a short stem, so it is easy to walk past. The guide also describes a mid-April to mid-May walk where it shows, so expect a second chance.

• Meadowlarks and bitterbrush

  The guide’s early-spring loop runs mid-February to late March · Lower Hulls Gulch and Red Cliffs trails, Boise

  That guide’s five-mile foothills loop promises buttercups, orogenia and the song of meadowlarks, and points out that bitterbrush, a leafless-looking shrub that feeds wintering deer and elk, bursts into fragrant yellow bloom in mid-spring. The guide was written in 2022 and described a trail schedule that gave hikers even-numbered days and downhill cyclists odd ones on the last stretch, so check Ridge to Rivers for the current rules.

How are Idaho’s deer, elk, bears and rabbits doing in March?

• The hardest weeks for fawns and calves

  Late March and April, according to Fish and Game · Winter ranges across southern and central Idaho

  Fish and Game’s April 21, 2025 report on collared animals says 67 percent of mule deer fawns and 93 percent of elk calves had survived the 2024–25 winter through mid-March. The long-term fawn average is about 60 percent, and mid-March survival ran from 46 to 82 percent across the seven winters the agency listed. Late March and April are often the deadliest weeks, it adds, because fat reserves are spent and young digestive systems need time to adjust to green forage.

• Bull elk shed their antlers

  March into April for bull elk; mule deer drop theirs in December and January · Winter ranges, bedding areas and migration routes

  Fish and Game’s March 13, 2025 shed-hunting advice says melting snow does not mean winter is over for wintering herds. It asks people to avoid the herds, glass slopes from a distance, control dogs and skip wet ground. There is no fixed shed season, but closures are possible after a hard winter, and nonresidents need an Idaho hunting license to pick up antlers.

• Black bears wake slowly

  As spring plants green up; a March bear is an early riser · Forests of northern and central Idaho

  Fish and Game’s guidance on emerging bears says they start looking for food right away, eating mostly spring grasses and anything else that offers easy calories, and that a bear may need 15,000 to 20,000 calories a day to rebuild fat. Bears smell food from miles away. Keep garbage in a garage or shed until pickup day and take bird feeders down once bears are moving.

• Pygmy rabbits under the sage

  Breeding in spring and early summer · Tall sagebrush in southern and east-central Idaho

  The state’s smallest rabbit needs tall sagebrush and deep, loose soil for burrows, eats little else in winter and tunnels under the snow. Females dig fur-lined dens and may raise up to three litters a season. Stay on established roads and trails to spare the burrows.

How much daylight does Idaho gain in March?

What is March weather in Idaho, and when is the last spring freeze?

What can you see in Idaho’s night sky in March 2027?

• Venus and a slim Moon at dawn

  Thursday, March 4 and Friday, March 5 · Low in the east-southeast before sunrise

  Venus blazes as a morning star all month, climbing out of the glow about two hours before sunrise at the start of March (a figure computed for the central United States, so allow half an hour either way in Idaho). A crescent Moon only 12 percent lit hangs near it those two mornings, before the clocks change.

• Mercury at its best

  Best from about March 8 to 25; widest from the Sun on the evening of Tuesday, March 16 in Idaho · Low in the east-southeast, roughly an hour before sunrise

  Mercury is farthest from the Sun in the morning sky, 27.6 degrees west of it, at 04:20 UTC on March 17, which is evening on the 16th in Idaho. A spring morning appearance is shallow, so you need a flat horizon; Venus, much brighter, floats well above it.

• Jupiter and the Moon

  Thursday, March 18 and Friday, March 19 · High in the south after dark, in Leo

  Jupiter, a month past opposition, rides high at magnitude minus 2.5, and a Moon nearly 88 percent lit slides within a degree of it on those two nights. On the night of March 30–31 Mars sits roughly four degrees away from Jupiter, a broad pairing worth a look. We computed these separations ourselves.

• The equinox and the Worm Moon

  Equinox Saturday, March 20; full moon Monday, March 22 · Rising in the east about 25 minutes before sunset on Sunday, March 21

  The full Moon, which almanacs call the Worm Moon, occurs at 4:44 a.m. MDT (3:44 a.m. PDT) on the 22nd, before moonrise, so the evening to watch is the 21st. It rises at 7:34 p.m. in Boise, 7:17 p.m. in Idaho Falls and 6:38 p.m. in Coeur d’Alene.

• Aurora, if the Sun cooperates

  Any clear, dark night; storms cluster near the equinoxes · Looking north from the Panhandle, Stanley and other dark valleys

  No agency forecasts aurora by season, but strong storms remain possible as the solar cycle fades and tend to cluster around the equinoxes. Check NOAA’s 30-minute aurora forecast on moonless nights near the March 8 new moon.

What can Idaho families do outside in March?

Safety notes for March in Idaho