Grackles are medium to large-sized blackbirds that travel in flocks and are known for their aggressive feeding behavior. They have a varied diet that includes seeds, insects, and even small fruits. Their large appetites can make them a nuisance at bird feeders, often displacing smaller, more desirable birds.

Yes, grackles do eat black oil sunflower seeds. In fact, these seeds are quite popular among many bird species, including grackles, chickadees, cardinals, and blue jays. Black oil sunflower seeds are favored because they have a thin shell, making them easy to crack open and eat. This characteristic also means that they can attract unwanted visitors like grackles.

If you want to attract a variety of birds while limiting grackle access, here are some effective strategies:

Using feeders designed for smaller birds can help deter grackles. Look for feeders with small or collapsible perches that are less accessible to larger birds. Mesh cages can also be effective, allowing smaller birds to feed while keeping grackles out.

While grackles will eat black oil sunflower seeds, they are less likely to waste them compared to other seed types. This means less spillage on the ground, which can attract grackles and other unwanted birds. When using black oil sunflower seeds, ensure the feeder is designed to minimize waste.

Safflower seeds are less appealing to grackles but are enjoyed by many other birds, such as chickadees and nuthatches. By offering safflower seeds in conjunction with black oil sunflower seeds, you can attract a wider variety of birds while making your feeders less attractive to grackles.

If you notice a large flock of grackles taking over your feeders, consider removing them temporarily. This can encourage the grackles to move on, allowing other birds to return.

To minimize grackle presence, feed your birds at specific times of the day. By bringing feeders in at night and putting them out only during certain hours, you can reduce the chances of grackles becoming too familiar with your feeding routine.

In summary, grackles do eat black oil sunflower seeds, and while they can be a dominant presence at feeders, there are several strategies to manage their impact. By choosing the right feeders, incorporating safflower seeds, and being strategic about feeding times, you can create a welcoming environment for a variety of birds while minimizing grackle interference. Happy birdwatching!