Screech-owls are opportunistic diners. In the Pacific Northwest, they’ll prey on small birds, crayfish, large ants, or earthworms. In Arizona, pocket mice and pack rats. And in Ohio, biologists who noticed a fishy smell around Eastern Screech-Owl nest boxes found the remains of dozens of…

Birdfeeders full of seeds or suet can spark nonstop action. Chickadees flitter in and out. Finches expertly crack one seed after another, while jays, doves, woodpeckers and sparrows all join the flurry. This might bring to mind a neighborly picnic — but it’s not quite as friendly. At any…

Los zorzales del bosque recorren más de tres mil kilómetros de ida y vuelta cuando migran desde los territorios donde se reproducen en el verano, en Estados Unidos y Canadá, hasta donde pasan sus inviernos en América Central. Durante su migración, las aves volarán cientos de kilómetros…

Frigatebirds are seabirds, but one thing you’ll never see is a frigatebird floating on the ocean. Why not? Because their feathers, unlike those of nearly all other seabirds, are not waterproof. Instead, frigatebirds are masters of staying aloft. They soar above the ocean, riding a complex…

One of the lesser known hazards of a bird’s life — when flitting from shrub to shrub — is collision with spiders’ webs. And when a bird flies through a web, it’s the spider’s hard work that takes the hit. It can take a spider an hour just to repair the damage and get on with the task of…

If we had to pick one bird’s voice to symbolize our Eastern woodlands, the Blue Jay’s voice would likely be it. And as a frequent visitor to back yards and bird feeders, the Blue Jay is among the most recognized birds of the region. Nearly a foot long, Blue Jays can be loud and assertive…

House Sparrows are ingenious birds that have learned a highly specialized skill: how to open automatic doors. House Sparrows have been seen activating electric-eye sensors to fly into restaurants, supermarkets, and home supply stores. What will they be up to next? BirdNote gives you the…

Hidden below the outer breast feathers of herons, pigeons, doves, tinamous, bustards and some parrots are patches of special down feathers. These feathers are never molted, and they grow continuously. The tips break down into a dust the consistency of talcum powder. Using a fringed claw on…

Smaller than a pigeon — but fierce enough to knock one from the air — are the powerful, compact falcons known as Merlins. Climate change is pushing ranges of many birds farther north, but more and more Merlins have been nesting farther south, in towns and cities across the northern United…

To help backyard birds through the winter, do less. Leave the leaves or rake them under plantings. The tasty insects and spiders underneath will be food for the towhee and this Song Sparrow. Don’t deadhead. Pine Siskins and goldfinches love to snack on dead flowerheads. Make an insect…