Fall Bird Migration in Utah

Utah puts more than 30,000 tundra swans on the Bear River marshes from mid October through December, at the end of a 12 mile auto tour route an hour north of Salt Lake City.

Agency viewing sites

Species documented

Mapped

Where to stand

Public viewing sites in Utah

Every place below is one an agency itself describes for watching the fall passage, with the agency named and linked, the species it documents there, the months it names as the peak, and the facility that exists: a tour route, a platform, a tower, a visitor centre. Where the agency wrote a sentence worth reading, it is quoted exactly.

Bear River Migratory Bird Refuge FederalMarquee site

Freshwater marsh units where the Bear River meets the Great Salt Lake, west of Brigham City

Tundra swan

JanFebMarAprMayJunJulAugSepOctNovDec

The refuge dates the swans precisely, putting over 30,000 tundra swans on the marsh from mid October through December, with up to half a million ducks and geese on the units at the same time. The 12 mile auto tour route is a 36 mile round trip from the interstate, open sunrise to sunset.

“Over 30,000 tundra swans begin to arrive in mid-October and stay through December.”

U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge, quoted exactly.

Run by U.S. Fish and Wildlife Service

Wasatch Front hawk count Public platform

Three peaks along the Wasatch Front, from Bountiful Peak in Davis County south to Kyhv Peak in Utah County

Broad-winged hawkSharp-shinned hawk

JanFebMarAprMayJunJulAugSepOctNovDec

A long season, mid August to the start of November, worked from three separate peaks rather than one lookout. Sharp-shinned hawks average around 99 a season and broad-wingeds are scarce here at about six.

“Consists of three primary count sites including (from north to south): Bountiful Peak (Davis Co.), Grandeur Peak (Salt Lake Co.), and Kyhv Peak (Utah Co.).”

HawkCount site profile, The Wasatch Front, quoted exactly.

Run by HawkWatch International, reporting to HawkCount

Before you drive out to Utah

Viewing in Utah is run by U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge, whose own page is the one to read the night before.

That page carries the current picture: whether the auto tour route or platform is open, which units are closed for the season, festival dates, and where the agency counts birds, this week’s count.

Never assume a bird. Cranes, geese and swans move with the weather, so a staging area that held thousands on Tuesday can be nearly empty on Saturday after a front passes, and a warm autumn holds birds to the north for weeks. Never assume access either: a refuge road can be gated, flooded or closed for a unit without notice. Check with the agency before you travel, and stay on the platform, road or tour route it designates when you get there.

Links verified 2026-09-19. If one has moved, search the agency by name.

The map

Utah sites, refuges and the reporting record

Viewing sites in Utah, with the national wildlife refuges in the state drawn underneath. The coloured grid is where people have uploaded a verified sandhill crane record to iNaturalist in September, October, November and December, brighter where more have been logged. It is a map of reports rather than of birds: it thickens around refuges, car parks and towns because that is where observers stand, and it shows past reports rather than birds present today. Pins are public viewing sites an agency itself describes; grey dots are US Fish and Wildlife Service refuges and hatcheries, drawn because the refuge system is where most of the staging happens.

When

When the passage peaks in Utah

U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge puts the Utah peak at Mid October through December for the swans, with the refuge putting the arrival at over 30,000 birds. That describes a pattern across past autumns. The week itself swings with the weather: a cold front to the north moves cranes and geese south in a single night, and a warm spell holds them for weeks. Dawn and the last hour before dusk are when cranes and geese move between the fields and the water, and that movement is the spectacle the platforms are built for.

Utah's autumn is a swan count with a precise date on it. Bear River, where the river spreads into freshwater marsh units at the top of the Great Salt Lake, holds more than 30,000 tundra swans from mid October through December, with up to half a million ducks and geese on the same units. It is reached on a 12 mile auto tour route off Interstate 15 at Brigham City, a 36 mile round trip with an audio tour, open sunrise to sunset year round. The raptor half of the season is smaller here: the Wasatch Front count works three separate peaks from Davis County south to Utah County, mid August to the start of November.

Below, one curve per species the agencies document in Utah: every research grade observation members of the public have uploaded to iNaturalist for the state, by calendar month across every year the platform holds, with September to December shaded. Counts of uploads, so they measure observers as well as birds, and the shape is worth reading where the absolute numbers are not.

Tundra swan

217 research grade tundra swans observations have been uploaded to iNaturalist for Utah across every year the platform holds, and 16 percent of them fall in the four shaded autumn months. The busiest month in the record is February. An autumn month carries about 0.37 times as many uploads as an average month outside autumn. People upload most of everything in May, so a bar that rises after that is the stronger signal. Counts of what people reported, measuring observers as well as birds. See the autumn records.

Broad-winged hawk

9 research grade broad-winged hawks observations have been uploaded to iNaturalist for Utah across every year the platform holds, and 56 percent of them fall in the four shaded autumn months. With fewer than 60 records the series is too thin to summarise, so the bars stand on their own. Counts of what people reported, measuring observers as well as birds. See the autumn records.

Sharp-shinned hawk

346 research grade sharp-shinned hawks observations have been uploaded to iNaturalist for Utah across every year the platform holds, and 43 percent of them fall in the four shaded autumn months. The busiest month in the record is January. An autumn month carries about 1.51 times as many uploads as an average month outside autumn. People upload most of everything in May, so a bar that rises after that is the stronger signal. Counts of what people reported, measuring observers as well as birds. See the autumn records.

Sandhill cranes flying in a loose line across a pale open sky, necks held straight out in front and long legs trailing behind them — Sandhill cranes crossing a refuge on the morning flight. The movement is watched from the designated pullout or platform: the birds settle on shallow water for the night, and the roost itself is the one place a viewing site is never placed. “Sandhill cranes flying over Sherburne National Wildlife Refuge (24542820818)” by USFWS Midwest Region from United States, CC BY 2.0

Latest reports

What people have reported in Utah lately

The most recent research grade autumn observation of each species that anyone has uploaded to iNaturalist for Utah, as a date and the platform’s own coarse locality. Evidence that people do find tundra swan and broad-winged hawk here. Each is one bird on one past day: the flocks move with the weather, so where they are this week is what the agency page and its counts answer.

Checking the most recent autumn uploads for Utah on iNaturalist...

Elsewhere

Other states with agency designated migration viewing

Questions about Utah

Where can I watch fall migration in Utah?

Utah has 2 agency designated viewing sites in this inventory, 1 of them on federal land: Bear River Migratory Bird Refuge and Wasatch Front hawk count. Every one is a place U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge or another public agency itself describes for wildlife viewing, listed above with the facility that exists there, the months the agency names and a link to the agency page. Utah puts more than 30,000 tundra swans on the Bear River marshes from mid October through December, at the end of a 12 mile auto tour route an hour north of Salt Lake City.

When is the fall migration peak in Utah?

U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge puts the Utah peak at Mid October through December for the swans, with the refuge putting the arrival at over 30,000 birds. That describes a pattern across past autumns, and the week itself swings with the weather: a cold front to the north moves cranes and geese south in a single night, and a warm spell holds them for weeks. The months named site by site above are the agency's own for each place, and the agency page carries what it says about this season.

Which species are documented at the Utah sites?

Tundra swans at 1 site, broad-winged hawks at 1 site and sharp-shinned hawks at 1 site. The species listed for each site are the ones the agency itself documents there in the fall, so a site may hold other migrants the agency page happens to leave out. The month curves further down show when people have reported each of these species in Utah, as a count of uploads to iNaturalist across every year the platform holds.

Will I definitely see tundra swans in Utah?

A sighting is never certain. Migrating birds move with weather fronts, so a staging area that held thousands on Tuesday can be nearly empty on Saturday after a front passes, and a warm autumn holds birds to the north for weeks. The sites above are the places where an agency has recorded enough birds often enough to build viewing provision, which is the best odds available anywhere. Arrive at first light or in the last hour before dusk, when cranes and geese move between the fields and the water, bring more magnification than you think you need, and stay on the platform, road or tour route the agency designates.

Who publishes current conditions for Utah?

U.S. Fish and Wildlife Service, Bear River Migratory Bird Refuge, linked from the note on this page and from each site above. Its pages carry the things that change: refuge road and auto tour status, seasonal closures of units, festival dates, and in several states a dated crane or goose count from the refuge staff. Those change faster than any third party page can follow, so the agency page is the one to read before you travel.

Inventory compiled 2026-09-19 from the agency pages linked above. Agency text is quoted exactly with its source named and linked; the observation curves and latest reports are counts and dates from public uploads to iNaturalist.

Winter eagle watching in UtahThe same refuges and rivers three months later, when the ice concentrates the eagles.Utah waterfowl seasonThe hunting calendar on the same marshes, worth knowing before standing on a dike in October.Utah daylight hoursThe dawn and dusk flights are the spectacle, and the clock change moves them.