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Plus, the birds can flock anywhere they find suitable: “It’s not just a backyard thing,” Leonard said. Flocks numbering in the thousands are usually found in February and March. In fall and winter, local birds will flock together, while many in the north will move down south to spend the cold months, according to the Carolina Bird Club. This includes traps, repellents, deterrents, and similar humane pest bird control products. They’re usually very noisy though, so you may be alerted to their presence by a dull din if they’re at a bit of distance or blocked by trees or other landscape features. Although it isn’t illegal to kill sterlings, there are multiple other ways to get rid of them. A flock of several thousand dark birds, all smaller than crows, are hard to miss in an open area. Furthermore, their waste is said to spread invasive seeds and disease. In spring, adult American Robins are often found feeding worms to their spotted young on lawns. Large flocks of starlings can greatly damage crops. “American Robins do flock in large numbers toward the end of winter - just before they migrate back to where they came from,” Leonard said. Many North Carolinians will also spot flocks of American Robins, the most numerous bird in North America (and a permanent resident of North Carolina). Flocks of blackbirds near airports (Figure 4) can cause a risk to flight safety because these birds can be ingested in large numbers into turbine-powered. On farms, Common Grackles can congregate in huge flocks to feed on crops and grain, and to roost, which can cause a problem to California farmers.
To see photos of each bird, visit /explore and search the species name. It is a member of the New World family of blackbirds, which contains some of the most common birds in North America, many of which like to gather in large flocks and make a lot of noise. If you’re seeing flocks of blackbirds in the Triangle, Leonard thinks they are likely European Starlings, Common Grackles or Brown-headed Cowbirds.
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