Grackles have an estimated population of 73 million in North America. These birds are native to North America but are considered a pest bird because of the damage they cause to agricultural properties and farming crops.
In the US, the Migratory Bird Treaty Act of 1918, grackles are protected. However, under this act, grackles may be controlled without a federal permit when they are found, “committing or about to commit depredations upon ornamental or shade trees, agricultural crops, livestock or wildlife, or when concentrated in such numbers and manner to constitute a health hazard or other nuisance.”
You will need to consider your local and state laws before you take any type of control measures against grackles.| Back |