- 1). Install bird spikes on any flat surface the birds are using for roosting or nesting. Although these spikes are unsightly, they will effectively keep birds from landing or building nests there. Make sure your spikes are designed for large birds like grackles; smaller birds will still be able to land and rest between the spikes, so you won't chase away the small, attractive songbirds you love to watch.
- 2). Protect your suet feeders from large birds like grackles. Use chicken wire or screen to build "fences" around your bird feeders. Cut small holes in the fence so that only small birds can get through to the food.
- 3). Switch some of your bird feeders to hopper feeders, which automatically close up when a heavier grackle lands on the perch.
- 4). Don't throw birdseed on the ground. If you've modified your feeders so that grackles can't get in and there's no birdseed on the ground for them, they'll move away.
- 5). Use a small handsaw to shorten the perches on your suet feeders. Smaller birds will still be able to use them, but grackles and blackbirds will be too big.
- 6). Buy suet feeders that make birds eat upside down. Large birds like grackles have trouble eating that way.
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