What happens between April and July tells you more than any summer forecast.
We would like to give you a no nonsense look at pheasant hatch survival in South Dakota — nesting, insects, and weather — so you can read conditions for yourself instead of trusting a summer forecast.
We get numerous inquiries each Summer about how our birds are faring. It’s a fair question, and we’ll always answer it honestly. But the most useful thing we can hand you is the ability to read it for yourself.
Once you understand what a pheasant needs between April and July, you can drive a stretch of Spink County road in August and form your own opinion. You’ll also know immediately when somebody is selling you a number they made up.
Here’s how a season gets made.
It Starts with Cover in April, Not Birds in October
Hens start looking for nest sites in mid to late April. What they want is residual cover — last year’s grass, still standing, thick enough to hide a hen and a nest from a hawk overhead and a coyote at ground level.
That’s the first bottleneck, and it’s decided before a single egg is laid. Ground that got hayed short in September or burned in late Fall has nothing to offer in April. Land that was left standing does. It’s a large part of why bird numbers can swing wildly between two farms four miles apart under identical weather.
A hen lays roughly ten to twelve eggs and incubates them about three weeks. Through that stretch she is nearly stationary and extremely vulnerable. Nest success — the share of nests that hatch at all — often runs somewhere between a quarter and a half. Predators, flooding, and equipment take the rest.
Mowing Timing Matters More Than Most Hunters Realize
Peak hatch in this part of South Dakota runs mid-June. A hayfield or CRP field mowed in the first half of June destroys nests and kills incubating hens outright. A hen killed on the nest is a double loss: this year’s brood and next year’s producer.
When we talk about managing ground for birds, this is a lot of what we mean. It isn’t glamorous. It’s deciding not to cut something when cutting it would be convenient.
Hens will try again, but the math gets worse.
If a nest fails early, a hen will usually renest. That’s the safety valve that carries a population through a bad May.
But renests are smaller — often seven or eight eggs instead of twelve — and they hatch later, which puts those chicks into August heat and sends them into fall smaller and less prepared. A hen raises one successful brood a year. Renesting softens a bad spring; it doesn’t fix one.
That’s why a wet, cold May shows up in the fall as fewer birds and a lot of small young roosters in your bag on opening weekend.
The First Two Weeks Are the Whole Ballgame
Chicks leave the nest within hours of hatching. They can walk and follow immediately, and that’s exactly what makes them fragile.
For roughly the first two weeks, a chick cannot regulate its own body temperature. It depends on the hen brooding it to stay warm. A warm summer rain is a non-event. A cold rain — 50 degrees and steady for a day and a half — is a killer. Chicks get soaked, chill, and the hen can only cover so many at once.
That’s the specific weather event to watch for. Not total rainfall. Not drought. Cold and wet, together, in mid to late June. When you hear an outfitter say “we had good moisture this spring,” ask when it came and how cold it was.
Hail during the hatch window is the other one, and it’s local. A storm that runs a ten-mile-wide path can gut one township and leave the next one untouched.
Bugs Are the Food, Not Corn
This is the part that surprises people. For the first three to four weeks of life, a pheasant chick eats almost entirely insects — grasshoppers, beetles, ants, caterpillars. Not grain. Not seeds. Protein.
A chick must find those bugs on its own, in cover it can physically walk through. Thick, matted grass is a wall to a bird the size of your thumb. What chicks need is structure overhead and open ground underneath — weedy, diverse, a little scruffy. A clean monoculture grass stand looks tidy and grows almost nothing a chick can eat.
So, when you’re sizing up ground in August, don’t just ask whether there’s grass. Ask whether there are bugs in it. Kick through a patch. If grasshoppers come up in clouds or you are instantly covered with mosquitos, that tells you more than anything you’ll read in a preseason article.
By four or five weeks the chicks fly reasonably well and their diet shifts toward seeds and grain. From there the risk profile changes to predation and, eventually, winter.
Winter matters, but usually less than you think.
Adult pheasants are tougher than they get credit for. In most South Dakota winters, birds with access to decent thermal cover — cattail sloughs, tree belts, standing food plots — come through better than most folks would predict.
The exception is a genuinely severe winter: deep snow, extended cold, and no cover within reach of food. That combination kills birds. It’s also the argument for standing corn and milo strips next to heavy cover, which is why we plant them.
But if you’re trying to predict a fall from one variable, the June hatch beats the previous winter almost every time. I personally believe there are larger clutches from the hens when the adult population is lower. Mother Nature’s way of giving the birds a boost.
So, What Do We Tell You About This Fall?
We tell you what we have observed. Our nesting cover went into April standing. We didn’t take hail during the hatch window. We’re bumping hens with chicks along the edges, and the grasshoppers are thick enough that you notice them while you’re walking.
This is all quite encouraging. With the chick’s all flying now, they can largely avoid their last obstacle to survival, predators. So, the vast majority will make it to Opening Day. We’ll give you an updated read in September, and it’ll be the same kind of read: what we are seeing, where we saw it, and what we can expect this Fall.
If you want to hunt over ground that’s managed with all of this in mind, give us a call.
Dennis Foster: 605-887-7069 • dakotapheasantguide.com