BirdNote Daily

Osprey are birds of prey with a wingspan more than 5 feet across. These large raptors construct huge stick nests that get up to 6 feet wide and 12 feet tall! While the Ospreys only occupy the upper portions of this structure, other birds have been observed taking up residence in the nooks and crannies below. This unexpected living arrangement is a classic example of protective nesting. Nesting birds – be they songbirds or raptors – must always be on the alert for egg-eating predators. But with pescatarians in the penthouse suite, the nests’ smaller tenants get 24-hour security without ending up on the menu themselves.

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Small, tern-like Bonaparte's Gulls often form a chorus-line at the water's edge. Side by side, in half an inch of water, they stomp their feet as fast as they can. Under this pummeling, a smorgasbord of shrimp is stirred up for the gulls to harvest. Is this a learned behavior, or were these gulls born knowing how to forage cooperatively? Who knows? But it's hard to imagine a more nutritional dance routine!

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During migration, some birds change orientation and travel almost the same distance — but in the opposite direction — as the rest of their species. The phenomenon is called misorientation. First-year birds are particularly susceptible. Many vagrant birds never find their way back on course, but some do, getting more comfortable with the route each year.

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How do birds drink? A robin takes a mouthful of water and then tips its head way back to send the water down its gullet. Pigeons are among the few birds that can suck in water with their heads down. Swallows and swifts skim a beakful of water on the wing. Gulls, like the Western Gull, can even drink salt water. If you have a birdbath, be sure to keep it clean. The birds' health is at stake.

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Sparrows are iconic desert denizens of the southwestern U.S. and northern Mexico. They thrive in open arid habitats, with evenly spaced shrubs, trees, and cacti. Historically, these native ecosystems were naturally maintained with frequent, low-intensity fires. But decades of drought and fire suppression have set the stage for hotter, more destructive blazes. We can protect Black-throated Sparrows and their vibrant habitats by preventing overgrazing on rangelands, combating the spread of invasive plants, and restoring a sustainable fire regime to the landscape.

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