Sumichrast’s Wren and Nava’s Wren are both sooty-brown songbirds of southern Mexico. They both live in tropical forests where limestone outcrops provide a natural amphitheatre to show off their vocal feats. Yet the two have very different songs and are never found in the same place. Though scientists once thought they were the same species, genetic studies eventually proved that the two wrens are distinct — each with their own way to serenade their forest homes.

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Humans and songbirds are among a small group of animals that can learn to imitate the sounds we hear. It’s an ability called vocal learning that makes language possible. Scientists who study human speech often start with birds that share our vocal learning skills, says neurobiologist Erich Jarvis. On Bring Birds Back, Erich discusses his research into the evolutionary origins — and unexpected benefits – of vocal learning for people and birds.

Listen to the full episode with Erich Jarvis in season 7 of Bring Birds Back!

More info and transcript at BirdNote.org.

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Trumpeter Swans are among the world's largest flying waterfowl. They can weight up to 25 pounds and have a wingspan of nearly seven feet! These swans migrate in family groups each fall from nesting sites in Canada and Alaska to wintering grounds in the central U.S. Trumpeter Swans are sometimes accompanied by their smaller cousins, the Tundra Swan. Both swan species look similar to each other, but their voices are distinct!

More info and transcript at BirdNote.org.

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Project FeederWatch is a community science project studying over 100 species of birds that spend their winters in North America. From November through April, people count the birds they see at a bird feeder, whenever and wherever they’re able, and submit their bird list to the project.

More info and transcript at BirdNote.org.

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All 50 states and the District of Columbia have official birds. To become a state bird, it helped to be familiar, colorful, and have a punchy song. The Northern Cardinal perches as state bird in seven eastern states, the Western Meadowlark in six western states. Bluebirds — like this Western Bluebird — and goldfinches are mascots of another seven. The country's most insistent songster, the Northern Mockingbird, holds down five states. And Washington, D.C.'s official bird? The shy Wood Thrush! Find out which bird is your state bird.

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While most Sandhill Cranes migrate, the Mississippi population lives year-round in wet pine savanna near the Gulf Coast. Their dependence on this unique habitat caused their population to plummet to just 35 when the savanna began to disappear. Through the Endangered Species Act, an almost 20,000-acre wildlife refuge was established for the cranes and the population has begun to recover.

More info and transcript at BirdNote.org.

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A birder may have a target bird so elusive that the bird becomes a kind of "jinx bird." But there was a real bird by that name! The bird once called the "jynx" is known today as the Eurasian Wryneck. When a wryneck is threatened, it twists its head like a snake and hisses. This behavior led to the wryneck being invoked in witchcraft to put a spell or a jinx on someone.

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When author and illustrator Becca Rowland first started learning to identify bird calls, they were delighted to discover that owls say more than just ‘who’! In her new book, Bird Talk: Hilariously Accurate Ways to Identify Birds by the Sounds They Make, Becca dedicates a whole chapter to the wonderful world of owl calls.

Support for Bird Note is provided by Jim and Birte Falconer — and generous listeners around the world.

More info and transcript at BirdNote.org.

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