Grackles like agricultural fields and are more of a threat to crops than crows. They are not however an invasive species. The Common Grackle is indeed native to Ontario and closely related to many Ontario songbirds and to the red-winged blackbird. To deter them you can try a hawk decoy or hang strips of aluminum foil (or shiny party streamers) from the trees or other high points around your home and garden. The sun reflects off the shiny surface and bothers their eyes, deterring them from coming near.
Ultrasonic noise makers are static sound-emitting bird deterrents you can place in gardens, patios, balconies and other open spaces to help scare various nuisance birds away. There are several versions of natural DIY bird repellent sprays you can make at home such as a concoction of chili peppers, water, and vinegar
Grackles like agricultural fields and are more of a threat to crops than crows!
Common Grackles are larger with a longer tail than European Starlings. They also have dark legs, a dark bill, and yellow eyes. Common Grackles are blackbirds that look like they’ve been slightly stretched. They’re taller and longer tailed than a typical blackbird with elongated tails, tapered bills, and iridescent plumage.
Grackles live in agricultural fields, feedlots, city parks, and suburban lawns. They’re also common in open habitats including woodland, forest edges, meadows, and marshes.
Several male Grackles will land around the female and perform several different displays in an effort to attract the female. Both Male and Female will bring nesting material to the nest site. This is done over a period of time lasting from 1 to 4 weeks. The female will lay 4 to 7 eggs that are pale greenish brown with dark marks. Incubation of the eggs will last about 13 to 14 days with the young leaving the nest in about 12 to 16 days after hatching. Only 1 brood is raised each season per nest site. Second broods are rare.
We always try to find the most humane and least stressful options in removing the nuisance animals. Sometimes different animals, pests or situations may require different solutions. We are always prepared for whatever wildlife or pest issue you have.