Freezout Lake Fall Migration 2026: Fuller Ponds, Swans to Watch

On Oct. 2, Freezout Lake's bird counters posted the line that matters most for this fall. NBC Montana reported their update this way: "Compared to recent years, water presence and distribution across the WMA has considerably improved." As of that writing, the only 2026 count on record was three swans on Oct. 4.

Three swans is a tiny number, and early October counts always are. The water report is the part with consequences. During the drought years, the snow geese that fill the Fairfield skyline kept coming. The birds that thinned out were the swans and diving ducks, because they depend on deep ponds for food. If this fall turns out different, that's where it will show.

What the dry years actually removed

The Choteau Acantha's report "Drought affects Freezout WMA" laid out the damage plainly. The main lake, Priest Butte Lake, and Ponds 1 and 5 still held water. Four smaller ponds were dry. Brent Lonner, the FWP wildlife biologist based at Freezout for 20 years, told the paper that visitors kept asking why some ponds were dry. He said explaining how the WMA runs during long drought had become one of the staff's biggest challenges.

He told the paper the snow geese would still come.

"We are definitely low, and some ponds are dry, but there is enough habitat and open water available. The birds are going to be there. The snow geese just need to sit on the water."

Snow geese use Freezout to drink and rest, and they feed in the grain fields around Fairfield. Lonner told the Acantha that diving duck and swan numbers were lower because those birds forage on plants in the water. In other words, the drought cut the WMA's value as a feeding ground but left it working as a resting spot.

The timing changed too. In a March 2025 KPAX report, Lonner tied reduced numbers to historically low water over the previous three to four years and said waterfowl were moving through faster than usual. That spring, a peak of roughly 30,000 snow geese was close to average, but the migration overall was slower and slightly below normal.

Why Freezout depends on irrigation water

Freezout was a natural sump before it was a wildlife area, and FWP says it sometimes dried up completely. Once the Greenfields Irrigation District was built, the basin began collecting irrigation water along with natural runoff. Dikes, ditches, water-control structures, and nesting islands came after that. Lonner told the Acantha that the WMA was set up partly to manage the extra water flowing down from flood irrigation around Fairfield. He called it "kill two birds with one stone."

That arrangement explains why the drought hit Freezout from two directions. The same Acantha report says GID has cut its allotment in half since 2024, from the past two acre-feet per assessed acre. It also quotes a GID presentation noting the system was built for flood irrigation and now runs "75% sprinklers," which means less "waste water" makes it to the lake. Changes on the farm side shrank one of the WMA's water sources even before rainfall was counted.

Staff responded by clearing ditches and replacing culverts. Lonner also pointed to kochia, an invasive weed that spreads in dry years, as a problem because it grows in the ditches and soaks up water. Drying ponds on purpose is normally a management tool, used to break up the soil and flush out salt buildup. During the drought it happened by necessity, and Lonner said that once conditions change, "the productivity of some ponds could be quite good."

The Oct. 2 update doesn't say why water is up this year or whether the GID allotment has changed. It only says the water is there.

What the last three falls looked like

Each of the last few falls went wrong in a different way, which makes them a useful baseline.

The 2023 slow start was blamed on timing, not water. The 2024 reports from NBC Montana directly blamed drought and low water for that fall's weak numbers. In October 2025, the counters warned again that low water would affect where birds showed up. Then the big push came in late November, and NBC Montana described the migration as peaking later than usual. The 41,000-goose day was the largest single count in that report. It was never published as the official season high.

For comparison, the 20-year record shows the fall migration usually peaking in early November, averaging more than 12,000 birds on peak days. FWP says light geese, meaning Lesser Snow and Ross' geese, usually start arriving in the second half of October and stay until severe winter weather sets in.

Measured against that record, swan numbers are the most useful thing to track this fall. In 2024 the swan count on Nov. 17 was 125. In 2025 it was 310 on the biggest goose day. If the fuller ponds are feeding birds again, the swan line on the dashboard is where it should appear first.

The fall calendar, opener to freeze-up

Most of these dates come from FWP regulations. The bird dates are typical patterns and shift with the weather.

1. Oct. 3 marked the start of the Pacific Flyway duck, coot, and goose season for Teton County, which runs through Jan. 15. The counters' Oct. 2 note expected the opener to change waterfowl presence on the WMA.
2. Oct. 10 was the statewide ring-necked pheasant opener. That season runs through Jan. 1. FWP lists pheasants, Hungarian partridge, and sharp-tailed grouse among the upland birds at Freezout.
3. Late October is when FWP says light geese usually begin arriving.
4. Early November is the usual peak, depending on weather.
5. Nov. 20 is when the seasonal closed area reopens to the public, hunting included. It has been closed since the general waterfowl opener so migrating birds have a secure area.

FWP notes that by Nov. 20, most of the area has usually frozen over and waterfowl activity is quite limited. Last year was the exception, with the biggest reported day coming on Nov. 24. That date fell after the reopening, which is one more sign of how far off schedule 2025 ran. During the closure, hunters working the boundary may enter the closed area to retrieve downed birds, but only without a firearm.

Where to watch, and where not to park

FWP's birding guide names The Neck as the best birding spot on the WMA because of its views across Pond 5. The Pond 5 boat launch gives a view of the pond's east side. The bay and points on the main lake are good spots too. Lonner told the Acantha in its Wild Wings festival preview that most WMA roads are open to vehicles and walkers, but the road along the west side is impassable when wet.

The kiosk at the headquarters entrance off US 89 has free maps and brochures. The rule FWP repeats most is to keep vehicles on designated roads and in designated parking areas. No parking is allowed on or along the shoulder of Highway 89. In the drought years, the ponds along the highway were the ones that went dry, so watching birds meant driving or walking in to the main lake. With more water spread across the WMA this year, the ponds along the road could be worth a stop again.

That same Acantha festival preview described the geese's daily routine during spring migration. They leave the ponds early for the grain fields, come back around 10 to 11 a.m., rest until late in the day, fly out to feed again, and return at twilight. That account covers spring, but it's a reasonable starting guess for when to head out in the fall.

For current numbers, the counts are on FWP's Freezout Migration Dashboard, with background on FWP's Freezout Lake WMA StoryMap. FWP says the dashboard is updated when bird numbers or weather change significantly, or as staff time allows, so it can lag behind what you see from the road.

Back in town

Central Montana Tourism lists Cozy Corner Cafe and Higher Grounds Espresso at 402 Central Avenue, about five minutes from Freezout Lake. That makes it a convenient stop before a dawn trip out or after a midday check of the ponds. The Choteau Acantha calendar lists the Fairfield Christmas Stroll for Friday, Dec. 4, 2026, from 5 to 8 p.m. By then the ponds will probably be frozen and FWP's season counts finished.

Freezout's water comes from rain and snow, a few creeks and seeps, and the irrigation canals running through the Fairfield bench, and that's part of what makes land and water here worth understanding. If you're thinking about acreage near Fairfield and want to know how irrigation district water and water rights work on a specific parcel, Live In Montana Real Estate knows this ground. Connect with a Montana expert.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.