Many bird species can eat the fruits of plants that are toxic to humans — even the white berries found on poison ivy. These birds just aren’t sensitive to the compounds in the berries that are irritating or poisonous to people. While you probably want to stay away from poison ivy, you can improve habitats for birds by planting native fruit bushes and advocating for wildlife-friendly gardening in public green spaces.

Support for this episode was provided by Jerry Tone and Martha Wyckoff from Seattle, Washington — and generous listeners around the world.

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Some believe the song of the Wood Thrush to be the most beautiful bird song in North America. Others select the song of the Hermit Thrush. Still others name the singing of the Swainson’s Thrush. How do thrushes like this Veery create such fine music? The answer is that the birds have a double voice box, unique to them, called the syrinx. A fine singer like a thrush can voice notes independently and simultaneously from each half of its syrinx, notes which blend brilliantly as ethereal, harmonious tones.

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At Charity Birds Hospital, a small staff takes care of approximately 2,600 birds at a time, providing antibiotics, medicine, food, and a safe place to rest for injured or sick birds. The hospital is run entirely on donations, mostly from the Jain community, which follows the philosophy, “live and let live.”

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Canyons, whether large or small, can host a spectacular variety of birds! Consider Swakane Canyon, in central Washington State. It cuts west from the Columbia River into the Entiat Mountains for nine miles, while gaining nearly 3,000 feet. Steep slopes wall in the canyon floor, several hundred yards wide. A slender creek runs through the canyon, nurturing shrubs like blue elderberry. The plant provides nesting cover for Bullock's Orioles and other birds in summer, and masses of tiny fruit to migrating birds in September. And each successive habitat embraces a new mix of birds and other wildlife.

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In the rural Southeast, roadside ditches – known as “bar ditches” – carry on for miles. The term bar ditch probably comes from their construction, when dirt was "borrowed" to build up the road. The ditches are full of water and full of life, these narrow wetlands. Herons stalk the shallow water, stabbing at minnows. Common Gallinules, like this one, swim on the surface. Reeds and bulrushes provide cover for secretive marsh birds like King Rails. Red-winged Blackbirds flash crimson epaulets as they sing, and Boat-tailed Grackles offer their own rough music.

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For as long as humans have been solving problems, we’ve looked to nature for inspiration. In some cases we’ve even imitated other organisms in our inventions through a process called biomimicry, says Billy Almon, a futurist and biomimicry expert. Billy discusses how the Wright brothers modeled their early airplane designs from the flight mechanics of turkey vultures and how there’s still a lot we can still learn from nature: our first teacher. Learn more in the latest season of Bring Birds Back!

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In June of 2022, Adé Ben-Salahuddin worked as a volunteer research assistant on a tiny island off the coast of Maine at a Common Tern breeding colony. Every once in a while, the colony would suddenly go dead silent as all the adult terns took flight and dove over the rocky cliffs, returning soon afterward. This strange behavior is called a “dread,” and sometimes occurs without a predator nearby. It remains unclear why terns do it.

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Bird nests can be hard to find, often hidden in plain sight. Is the clever camouflage simply the result of using building materials that the birds happen to find? A Scottish research team used birds popular in the pet trade, Zebra Finches, to try and find out. The team gave nesting Zebra Finches two sources of paper to build their nests from: one that matched the papered walls of their cage, and one that did not. By and large, the finches built nests that blended in with their background.

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The Florida Keys extend from the state's peninsula like a string of pearls, and pearls they are, in their uniqueness and value. Stands of hardwood trees rise above the islands' level ground. These trees draw many birds of the Caribbean to the keys' tropical habitat. One of these is the White-crowned Pigeon. It's a fruit-eater that eats native figs and the fruit of the poisonwood tree. White-crowns play an important role in spreading seeds. The birds swallow fruits and deposit some of the seeds on the hardwood knolls also called hammocks. Without the pigeons, there might be no tropical hardwood hammocks in the Keys. But without the hammocks, there would be no White-crowned Pigeons in Florida.

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Migratory birds connect the Northern Plains with many parts of the Western Hemisphere. Lark Buntings, Baird’s Sparrows, Upland Sandpipers, and many other birds winter from Central to southern South America. But their reproduction depends on the bounty of the prairie spring. Disrupting any part of their annual life cycle — breeding habitat, stopover places during spring and fall migration, and wintering habitat — reduces the survival of the species.

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