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…

In this episode of BirdNoir, Michael Stein — Private Eye — gets a call from a friend, Danny, who wants to know why the bluest bird he’s ever seen has vanished. But there are many birds that are blue besides the true bluebirds (which belong to the thrush family). To solve the mystery, the…

Looking at a Canada Goose, you might not think their bodies are designed for fancy flying. But watch as a flock of geese comes in for a landing at a lake and you might be surprised. If the flock comes in too fast or too high above the water, geese have a little trick to slow themselves…

Traveling "as the crow flies," eating "like a bird," and being "free as a bird" are just a few of the sayings we use to describe everyday human actions and feelings. But these often don't take into account the birds' real activities, relative to their size.

On a still winter afternoon, you may hear Common Goldeneyes flying low across the water. Whistlers, their wings sibilant, make the sound – as Ernest Hemingway wrote – of ripping silk. Common Goldeneyes nest in cavities, in northern boreal forests.

Some owls, like Barred Owls and Great Horned Owls, live in the city. As hunters, they find a lot to eat in the city — like rats or squirrels! Both favor urban parks, cemeteries, and botanical gardens — places with big trees — and both roost during the day. The Great Horned Owl, like this…

In this episode of BirdNoir, the Private Eye hears from his friend Danny, who is having his bird feeders pilfered by a pack of rowdy squirrels. While a determined squirrel thief is hard to stop, the detective gives Danny suggestions on the best ways to foil these clever critters.

Red-tailed Hawks typically have a nesting territory of about a half-mile to a full square mile, depending on how much food there is. Bald Eagles’ nesting territories range from 2½ square miles to as much as 15 square miles, for the same reason. But the Gyrfalcons in Finland and Scandinavia…

Sometimes all you need to identify a bird is a single feather. Because collecting bird feathers is prohibited in the U.S. to protect birds from poachers, start by taking a photo with a common object for scale. Then you can use online resources like the iNaturalist app or Featherbase…

The challenge of learning which gull is which brings to mind a crossword puzzle. Take in all the clues, and come up with the right answer. For identifying gulls, we recommend a good bird book, binoculars, perhaps a thermos of hot coffee, and maybe a chair. So which gull is this? Large gull…