Blog / Hunting for Greenheads: Using Field Decoy Spreads

By Connor Thomas
Wednesday, June 05, 2024

 
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Why Field Spreads Work So Well on Mallards

Greenheads flock to agricultural fields for one reason—food. But once they’re committed, your spread must:

  • Look natural from altitude

  • Provide motion and confidence

  • Offer a clear landing pocket

  • Match the density and shape of naturally feeding birds

  • Signal safety and competition

A well-built spread brings mallards in from long distances across open fields.

The Best Fields for Mallard Hunting

Greenheads favor fields with:

  • Cut corn (number-one choice in most regions)

  • Harvested wheat, barley, or oats

  • Pea fields

  • Flooded ag edges

  • Freshly disked ground with exposed grain

Scout for heavy feed marks, droppings, feathers, and recent landing zones.

Choose the Right Decoys for Field Hunts

Full-Body Decoys

The gold standard for field mallards.

Advantages:

  • Highly realistic

  • Visible from long distances

  • Create a natural feeding posture

Use a mix of feeding, upright, and resting poses.

Shell Decoys

Lightweight and perfect for filling out spreads.

Best for:

  • Large spreads without heavy weight

  • Mixed in with full-bodies

  • Creating realism without excess cost

Silhouette Decoys

Excellent for visibility and adding numbers.

Benefits:

  • Create motion-like flicker from different angles

  • Easy to pack

  • Work incredibly well on sunny days

Silhouettes and full-bodies together create unbeatable realism.

Motion Decoys

Movement is critical in open fields.

Use:

  • Spinning-wing decoys (spinners)

  • Shakers or pulsators (if near water edges)

  • Wind-driven full-body motion stakes

RULE:
Too much motion spooks pressured birds. Too little movement in calm weather looks unnatural. Strike the balance based on wind and pressure.

Building the Perfect Field Spread for Greenheads

1. The “U” or “Horseshoe” Spread

One of the most effective patterns.

  • Two arms of decoys shape the “U”

  • Landing pocket sits in the center

  • Hunters hide at the back or inside the pocket

Ideal for:

  • Larger groups

  • Mixed wind conditions

  • Highly visible fields

2. The “J” Spread

Classic waterfowl shape adapted to fields.

  • Long tail line of decoys

  • Tight head group

  • Landing zone near the hook of the “J”

Best for:

  • Strong crosswinds

  • High-wind days

  • Solo or small-group hunts

3. The “Blob” Spread (Feeding Concentration)

Extremely effective for birds feeding aggressively.

  • Large, dense group of feeding decoys

  • Randomized spacing

  • A loose, natural appearance

Perfect for:

  • Cut corn

  • Intense feeding days

  • Late-season frenzies

4. Scattered Family Groups

Mimics early-season behavior.

  • 3–6 decoy groups

  • Loose spacing

  • 10–20 yards between groups

This spread looks natural and reduces suspicion on calm days.

How to Place Your Spinners

Spinning-wing decoys draw mallards from incredible distances, but placement is key.

  • Place spinners near the landing pocket

  • Keep them 10–15 yards in front of the blind

  • For pressured birds, move spinners 20–30 yards upwind and turn them off late

  • In low wind, run one spinner; in strong wind, two or more

If ducks shy off at the last second, turn the spinner off immediately.

Using Wind to Your Advantage

Rule #1: Ducks Land Into the Wind

Always set up:

  • Your landing pocket facing the wind

  • Your blind downwind of the pocket

  • Decoys guiding ducks into a clear touchdown zone

Crosswind Hunts

If wind doesn’t cooperate:

  • Set a crosswind J-spread

  • Put the landing pocket directly in front

  • Let ducks slide left or right into the pocket

Crosswinds often produce the most controlled shots.

Concealment Is Everything

In a field hunt, hide is more important than decoys.

Best Concealment Options:

  • Layout blinds brushed with natural stubble

  • A-frames placed in fence lines or vegetation

  • White suits in snow goose spreads (if legal and ducks are mixed)

  • Natural hides like irrigation ditches, hill contours, or brush rows

Blend into the natural stubble 100%.

Movement ruins field setups more than anything else.

Decoy Spread Adjustments for Different Conditions

Early Season

  • Fewer decoys

  • Family groups

  • One spinner

  • Spread lightly rather than densely

Mid-Season (Prime Migration)

  • Larger spreads

  • Spinners closer to the kill hole

  • Mixed full-bodies and silhouettes

Late Season

  • Spacing increases

  • Very cautious spinner use

  • Add more resting decoys

  • Use sparse but tight landing pockets

Ducks get educated—your spread should look relaxed, calm, and natural.

Shot Strategy for Field Mallard Hunts

  • Let ducks finish—don’t rush shots

  • Call “Take ’em” when the majority are in the pocket

  • Shoot the back birds first to prevent flock sky-busting

  • Keep shots tight and controlled

Quality beats quantity.

Why Many Hunters Book Guided Field Duck Hunts

Expert waterfowl outfitters offer:

  • Access to private ag fields loaded with mallards

  • Pre-scouted feeding zones

  • Professionally brushed blinds

  • Massive full-body decoy spreads

  • Perfectly positioned landing pockets

  • Experienced calling and wind-based setup decisions

If you want effortless, high-quality field mallard hunts with consistent greenhead action, book through our hunt marketplace.

FAQs About Using Field Decoy Spreads for Mallard Hunting

How many decoys do I need for a field hunt?
24–60 is typical. Larger spreads work best for pressured or migrating birds.

Do spinners always work in fields?
Usually, yes—but turn them off if birds start flaring at the last second.

Do greenheads prefer feeding or resting decoys?
A mix is ideal. Use more feeders in late season when ducks are hungry.

How close should decoys be to the blind?
10–25 yards depending on the wind and landing pocket size.

What’s the best choke/load setup for field mallards?
Improved Cylinder or Modified with high-quality #2 or #3 steel.

Field decoy spreads are one of the most powerful ways to consistently finish greenheads in dry fields. When your decoys, wind, hide, and motion all work together, mallards commit from the sky with unforgettable confidence. If you’re ready for a top-tier greenhead field hunt, explore vetted outfitters and book through Find A Hunt.