WHY IS THE COMMON GRACKLE BECOMING LESS COMMON?

Why is the Common Grackle becoming less common?

Despite a generalist life history and a widespread distribution, the Common Grackle (Quiscalus quiscula) has declined by more than 58% since 1970.In Illinois, where this study was conducted, the current rate of decline is 7.03% annually.We hypothesized that low reproductive success in intensely agricultural areas is driving population decline.To te

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