A little bird that spends its winters on the Georgia coast is one of the animals most threatened from sea level rise, according to researchers.
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Saltmarsh sparrows are small, streaky brown-striped songbirds with a voice like a squeaky whisper.
They split their time the same way some humans do: They spend their winters on the Georgia coast, then head back up north in the spring. That's where the birds breed, in coastal marshes from Virginia up into Canada.