"We're quiet, we're safe." That's how Lisa Duke, grounds manager at the W.K. Kellogg Bird Sanctuary in Augusta, explains why trumpeter swans keep showing up on Wintergreen Lake every fall. It sounds like a line about the lake's permanent residents, the handful of swans people photograph from the overlook every October. It isn't. Duke was talking about the young ones, birds that haven't paired off yet and won't nest anywhere this year. If you've walked the path along Wintergreen Lake assuming you were watching the same swans return season after season, you were watching something closer to a rest stop for teenagers.
That distinction matters more than it sounds like it should, because it changes what's actually happening at the sanctuary between now and Halloween. This isn't one postcard weekend. It's a five-week stretch with specific dates on the calendar, a swan population that's mostly passing through rather than settling down, and a reason the birds pick this particular 40-acre lake over every other body of water between Kalamazoo and Battle Creek.
Why a Man-Made Lake in Augusta Became a Swan Nursery
Wintergreen Lake didn't start out as anything special. When Michigan State University first acquired the land for the Kellogg Bird Sanctuary, it was cleared farmland with almost no trees and barely any wetland left. The sanctuary's first director, George Corsan, oversaw the planting of more than 4,000 trees to rebuild the habitat from close to nothing. The lake itself, formed long ago by a melting block of glacial ice, sits directly in the path of several waterfowl migration routes, which is part of why it became a logical place to try something ambitious.
That ambitious thing was bringing trumpeter swans back to Michigan. The species had been effectively wiped out of the state, and in the 1980s Michigan joined a broader push across the upper Midwest to restore it, working with the Michigan Department of Natural Resources, the Trumpeter Swan Society, and the Michigan Habitat Foundation. The Kellogg Bird Sanctuary became the hub for that effort, and Wilbur "Joe" Johnson, whose leadership on the project is still remembered by sanctuary staff decades later, became the name people ask about when they visit.
The work paid off. Michigan's trumpeter swan population today is estimated at roughly 3,000 to 5,000 birds, up from a species that had all but disappeared from the state within living memory. Wildlife professionals still track ongoing threats, including habitat loss, lead contamination, disease, and collisions with power lines, so the recovery isn't treated as finished business. But it's real enough that a sanctuary built on cleared farmland now functions as a kind of way station for the species' next generation.
That's the piece most visitors miss. The lake stays open year-round because it's outfitted with aerators, which is unusual for an inland Michigan lake and is exactly why swans linger here well past when other lakes ice over. But the swans arriving now, in the weeks before the lake's regular crowd of ducks and geese thins out for winter, tend to be non-breeders of the year, young birds without established territory who use Wintergreen Lake as a low-stakes place to wait.
The Five-Week Window Locals Actually Get
None of this is guesswork you have to time yourself. The sanctuary runs a specific fall calendar, and if you live in the Gull Lake Schools footprint, this is the version worth keeping on your phone rather than discovering after the fact.
- Saturday, September 12, 9 to 10:30 a.m. — A guided Fall Migration Bird Hike starting at the Resource Center, walking down to Wintergreen Lake with a focus on the insects migratory birds rely on this time of year. Admission runs $7 for adult members, $6 for senior and student members, and $5 for member children ages 2 to 17, with non-member pricing at $9, $8, and $7 respectively.
- Thursday, September 24 and Thursday, October 22, 9 to 10:30 a.m. — The sanctuary's monthly birding walks, held the fourth Thursday of the month, continue through October before pausing for the season. These are lower-key than the special hikes, aimed at anyone practicing bird identification by sight and sound.
- Sunday, November 1, 1 to 4 p.m. — The Fall Migration Celebration closes out the season's programming before things quiet down heading into winter.
That's the actual shape of fall here. Not one weekend to circle, but a short run of dates that ends abruptly at the start of November, right as the swans that showed up in September have mostly moved on to find winter territory or, eventually, a mate somewhere else in the state.
Which Trail You Take Changes What You See
The sanctuary gives you two different experiences depending on how much time you have. A paved, three-quarter-mile accessible path leads straight from the Resource Center to Wintergreen Lake, and it's the fastest way to see the swans, Canada geese, and assorted duck species up close without much planning. If you've got more time, the sanctuary's full trail system runs about three miles through pine stands and marsh, past enclosures built for birds of prey.
Those enclosures are worth the extra distance. The sanctuary houses Bald Eagles, Red-tailed Hawks, and Eastern Screech Owls in its raptor exhibits, and the Leslie E. Tassel display features threatened and endangered upland game birds from Michigan and beyond. None of these birds arrived on their own. Most are part of the sanctuary's rehabilitation and conservation work, which is a different story from the swans out on the water but runs on the same grounds.
A few practical things catch first-time visitors off guard. Dogs aren't allowed anywhere on sanctuary property except the MSU academic campus, the Conference Center and Manor House grounds, and the Plant Succession Trail at the corner of B Avenue and East Gull Lake Drive. Bikes, skateboards, and drones are off-limits everywhere on the grounds, and there's no bringing in food to feed the waterfowl, however tempting that swan on the shoreline makes it look.
The Rest of Hickory Corners Doesn't Take a Weekend Off
Fall around the Gull Lake Schools area doesn't stop at the sanctuary gate. A short drive away in Hickory Corners, the Gilmore Car Museum is running its own last event of the season on Saturday, October 3, from 11 a.m. to 4 p.m. The Flavors of Fall Color Tour & Bourbon Tasting is billed as the museum's final scenic drive of the year, taking guests along winding Barry County backroads at peak foliage to a lakeside buffet lunch at Lake Algonquin, followed by s'mores and a bourbon tasting back at the museum's Carriage House Bar.
It's a different kind of outing than a morning at Wintergreen Lake, but the timing lines up in a way that's easy to miss if you're only thinking about one destination at a time. The sanctuary's monthly walks wrap in late October, the museum's color tour runs the first weekend of that month, and the Fall Migration Celebration closes the loop on November 1. Taken together, it's less a single event to plan around and more a short season with a real start and end date, one that most visitors treat as a single afternoon trip instead of the layered thing it actually is.
That's the part worth remembering before the calendar flips to November. The swans gliding across Wintergreen Lake this month aren't a fixed cast of characters you'll recognize next year. They're mostly passing through, using a lake that took decades of deliberate work to become the kind of place a young swan would pick. By the time the Fall Migration Celebration wraps up, most of them will already be somewhere else.
If watching that shift up close makes you curious about what year-round life actually looks like in the communities around Gull Lake, from Richland to Augusta to the rest of the school district, Mary Noneman has spent years working this exact stretch of Southwest Michigan and is always glad to talk through what a given neighborhood is really like to live in, no obligation attached.
