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Fall Bird Migration in Oregon

Oregon breaks the autumn in two at the Cascades: sandhill cranes and tundra swans on the high desert ponds east of the crest, and sharp-shinned hawks along the ridges that funnel the Pacific flyway.

Agency viewing sites
3
Species documented
3
Mapped
3
Where to stand

Public viewing sites in Oregon

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.

Malheur National Wildlife Refuge FederalMarquee site

High desert marsh, ponds and grain fields in the Blitzen Valley of southeastern Oregon

Sandhill craneTundra swan

The refuge writes the arrival of lesser and greater sandhill cranes onto the grain fields as the thing that breaks the quiet of summer, and names Knox, Benson and Marshall ponds for tundra swans in October and November. Early morning and late evening are its own advice.

“One of the highlights of winter is large groups of tundra swans which may be present in October and November at Knox Pond, Benson Pond, and Marshall Pond.”
U.S. Fish and Wildlife Service, Malheur National Wildlife Refuge, quoted exactly.

Run by U.S. Fish and Wildlife Service

Green Ridge hawk count Public platform

A north to south ridge on the east side of the central Oregon Cascades

Sharp-shinned hawk

A short season, mid September to late October, on the dry side of the crest. Sharp-shinned hawks average around 420 a season here, and the ridge line is what concentrates them.

“The Green Ridge site is located on a North to South running ridge on the east side of the Central Oregon Cascades.”
HawkCount site profile, Green Ridge, quoted exactly.

Run by Green Ridge Hawk Watch, reporting to HawkCount

Dutchman's Peak hawk count Public platform

A peak in the Siskiyou Mountains of southwestern Oregon, near the California line

Sharp-shinned hawk

The longest season of the three Oregon counts, mid August into the second week of November, and the only one of them that reaches south to the Siskiyou crossing. Sharp-shinned hawks average around 109 a season.

Run by Dutchman's Peak Hawk Watch, reporting to HawkCount

The map

Oregon sites, refuges and the reporting record

Style
Records
Layers

Viewing sites in Oregon, 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.

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When

When the passage peaks in Oregon

U.S. Fish and Wildlife Service, Malheur National Wildlife Refuge puts the Oregon peak at September through November, with tundra swans on the Malheur ponds in October and November. 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.

Oregon breaks its autumn in two at the Cascade crest. East of it, on the high desert, Malheur writes the arrival of lesser and greater sandhill cranes onto its grain fields as the thing that breaks the quiet of summer, and names Knox, Benson and Marshall ponds for the tundra swans that show in October and November. The refuge's own advice is early morning and late evening. Along the ridges, three counts work the Pacific flyway on different calendars: Green Ridge for six weeks in September and October on the dry side of the crest, and Dutchman's Peak in the Siskiyous from mid August into the second week of November.

Below, one curve per species the agencies document in Oregon: 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.

Sandhill crane

1,463 research grade sandhill cranes observations have been uploaded to iNaturalist for Oregon across every year the platform holds, and 14 percent of them fall in the four shaded autumn months. The busiest month in the record is April. An autumn month carries about 0.33 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.

Tundra swan

901 research grade tundra swans observations have been uploaded to iNaturalist for Oregon across every year the platform holds, and 30 percent of them fall in the four shaded autumn months. The busiest month in the record is January. An autumn month carries about 0.86 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.

Sharp-shinned hawk

808 research grade sharp-shinned hawks observations have been uploaded to iNaturalist for Oregon across every year the platform holds, and 45 percent of them fall in the four shaded autumn months. The busiest month in the record is January. An autumn month carries about 1.61 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 Oregon lately

The most recent research grade autumn observation of each species that anyone has uploaded to iNaturalist for Oregon, as a date and the platform’s own coarse locality. Evidence that people do find sandhill crane and tundra swan 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 Oregon on iNaturalist...

Elsewhere

Other states with agency designated migration viewing

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Questions about Oregon

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