NestWatch Managing House Sparrows and European Starlings - NestWatch

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Study examines attitudes toward non-native birds

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Complete Hub Of Bluebird Resources

We Helped Scientists Track Birds This Summer. - The New York Times

Study examines attitudes toward non-native birds

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House Sparrow – Cheyenne Bird Banter

Similar Species to House Sparrow, All About Birds, Cornell Lab of Ornithology

European Starling