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Delay Hay Cuttings to Allow Birds to Successfully Fledge Young

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A University of Vermont Study comparing nesting success of grassland birds for various management techniques on working haylands found that early cut haying caused almost all Savannah Sparrow and Bobolink nests to fail. But the birds re-nest, and late-hayed fields were found to be high quality reserves for late-nesting birds.

Conclusion: Waiting 65 days after a May cutting before the next cut allows young to fledge from the nest ahead of the next haying.