BirdNote Daily

During migration, Snow Geese gather in the tens of thousands. They coordinate their movements, flying in a big, compact flock, which makes it harder for a predator to pick off a single bird. It is truly something to see.
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Related to shearwaters and petrels, the Northern Fulmar will eat just about anything it finds on the surface of the ocean, from fish and squids to dead whales. While some have snow-white bodies and gray wings, others are dark gray all over. That’s because fulmars are polymorphic, which is to say they come in multiple colors or “morphs”. The difference is genetic and doesn’t depend on age, sex, or season. This color variation may offer behavioral or habitat-based advantages to fulmars and other polymorphic species like Snow Geese, screech-owls, or Red-tailed Hawks.
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Long, upward slopes called escarpments offer a good chance of seeing some of the many raptor species found in Belize. Shaped like a compact Red-tailed Hawk, White Hawks are white overall with black markings and scan the landscape for reptile prey. Bat Falcons have a darkly barred chest and cinnamon belly, and chase down swifts, dragonflies, and the bats that give them their name. Ornate Hawk-Eagles stand over two feet tall and are capable of catching monkeys.
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It’s a wistful moment when your backyard birds — like these Black-capped Chickadees — depart their nestboxes. By October, it’s time for one last duty as nestbox landlord: to clean it out. Cleaning will reduce the incidence of parasites in the box and make it more inviting to next spring’s tenants. It will also help you know for sure if it gets used again.
More info and transcript at BirdNote.org.
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Despite their name, Prairie Warblers nest in tree farms of recently planted pines, in fields overgrown with scattered shrubs, and in clearings under power lines. Biologists call these “early successional” habitats. They’re characterized by plants that are the first to return to land altered by clearing or fire. Prairie Warblers and similar birds have declined rapidly during the last 50 years, being pressed from all sides. But they’re now benefiting from conservation on several fronts, including the Michael Huber Prairie Warbler Preserve in New Jersey’s Pine Barrens and the Albany Pine Bush Reserve in New York.
More info and transcript at BirdNote.org.
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