Early Thursday morning the wind was from the northwest, brisk but manageable, and this big, shallow lake, some 50 miles long, appeared a darkened labyrinth of narrow waterways and reedy islands and points. Among these, we had come looking for ducks, bluebills in particular, but also canvasbacks, redheads and mallards.

Made famous more than a century ago by the late Jimmy Robinson, outdoor writer and pal of Ernest Hemingway, Clark Gable and others he hunted with, the marsh today remains pretty much the same as Jimmy knew it. By turns a duck haven and dangerous place to paddle — no motors are allowed — Delta bears an attraction not soon forgotten.

For 20 years, I traveled here nearly every fall, always with my friend Willy Smith. We first hunted ducks together in college, and our trips throughout western Minnesota expanded as time and funds allowed. We were water hunters, so Delta seemed a natural destination, and as time passed we learned how to play its winds, break its ice and call its bluebills. Season by season, we returned to shore with progressively more ducks, and earned every one of them.

Thursday was different. Willy was back in Willmar, being a pharmacist, and I would push off onto Delta with my son, Cole, and his pal, Max Kelley, both 18, and both first-time visitors.

The trip had begun inauspiciously Wednesday afternoon while we were scouting and I buried my truck’s front axle in mud. This happened a long way from anywhere, and as darkness approached, I learned anew the value of other hunters willing to help — and the value of tow straps kept handy.

So we wanted Thursday morning to unfold more positively. The alarm rang at 4, and Max, Cole and I soon departed from the same motel in Portage la Prairie, Manitoba, that Willy and I stayed in those many years ago. With block walls, the place isn’t fancy. But it has a stove, a refrigerator, a TV and is “pet friendly,’’ meaning the dog can sleep on the bed if he wants.

Terrain turns soft

On the advice of a friend who hunts Delta every year, we had toted a four-wheeler along on the trip. Always changing, the marsh was thrown for a loop a couple of seasons back by massive flooding, and now water edges that once could be driven to are in some cases separated from hard ground by hundreds of yards of muck. So we unloaded the machine from our pickup, connected it to our canoe by a rope, packed it with decoys and other gear, and maneuvered the lot of it to our hunting water.

Cole and I pushed onto the marsh first, while Max waited in darkness with my dog, Del. Not knowing, really, where we were going, we wanted to find a point or similar spot where the wind blew over our backs and was inviting to ducks landing. A half-hour later we found it, or thought we did, and unloaded everything. Then we returned for Max and Del.

But in the dark I had gotten it wrong. When sunup came, we heard shooting in all directions but saw few birds.

We would get it right later in the morning, after we moved. Our new spot was in an island’s lee, and out from shore, we ran a long string of bluebill blocks, flanked on either side by pockets of fake mallards. The early morning’s clouds by then had drifted away, but the breeze remained, and on it, soon, singles and pairs and small squadrons of bluebills arrowed into us, gaining our attention, and multiple volleys.

Les Kouba, the late wildlife artist, finished a painting a long time ago called “Tin Town.’’ In it, 13 bluebills gathered on October winds near the Delta Marsh duck-hunting settlement of the same name. To Willy and me, the painting and its limited edition knockoffs were inspirational because Tin Town was where we launched our duck boat onto Delta.

But it’s the bluebills the painting immortalized, and how these birds bank on the wind, turn for decoys, and how, finally, they cup their wings, wanting to land.

So it’s not the shot itself, or a bird’s retrieval by dogs now gone, that I remember about those hunts with Willy. Instead it’s the birds, how they flew and how they gathered on this huge marsh en route from the parklands in the far north before sailing farther south to Lake of the Woods, to Leech Lake, to Winnibigoshish and the other big waters they favor.

That’s what I remember. And now, Max and Cole will remember it, too.