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Grackle Control

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Scientific Name Quiscalus quiscula

Common GracklePhoto Credits: NEBRASKAland Magazine/Nebraska Game and Parks Commission Photo

Biology

• Diurnal

Signs

Fecal sacs (whitish droppings) evenly distributed across hard surfaces.

Damage

• Nestling grackle parents remove fecal sacs of young (white, globular droppings) and drop or wipe on hard surface. These usually occur near water. Backyard pond shorelines, concrete slabs, vehicles, trampoline surfaces are affected.
• May kill and eat young of other birds

• aesthetics due to droppings

Solution

Habitat Modification

• Monofilament or other lines placed in flyways between nest area and areas of damage. Potential nest sites can be tall, dense shrubs to tall trees. Block flight lines between nests and effected surfaces, using suspended monofilament line or reflective materials
• Grackles nest May through July and continue to feed young and remove fecal sacs during this period.

Repellents

• Repellent no chemical repellents registered.
• Water sprays, bright lights, reflective materials at potential nest sites prior to nesting.

Direct Control

• Check local ordinances and state game laws.

University Publications