Starlings are called the rats of the bird world.They live in a wide variety of environments throughout North America.This represents an example of

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The fact that starlings live in a wide variety of environments throughout North America suggests that they occupy a generalized niche, meaning they are able to utilize a wide range of resources and habitats. This is different from ecological equivalence (where different species have the same ecological role) or resource partitioning (where different species divide a resource to minimize competition). While there may be some competition between starlings and other bird species, there is no evidence to suggest that they are excluded from certain environments or resources, which would be indicative of competitive exclusion.

Starlings Are Called the Rats of the Bird World