BirdNote Daily

Not all owls live in the deep woods. Many Great Horned Owls make their homes in urban areas. Though mostly nocturnal, Great Horned Owls are also active early in the morning and just after sunset, offering a chance to see them hunting for rodents and other prey. Look for their distinctive horns, which are really just feather tufts. At night, you might hear their deep, syncopat...

Seabirds have no problem drinking sea water. The salt they take in is absorbed and moves through their blood stream into a pair of salt glands above their eyes. The densely salty fluid is excreted from the nostrils and runs down grooves in the bill. As the drop gets larger, the bird shakes its head to send the salt back to the ocean. A seabird's skull has a pair of grooves fo...

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 d...

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.

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Evolution works with what's at hand. So if you start with a normal bird skull – bill pointing forward, eyes oriented front or sideways, ears behind eyes – and introduce the challenge of seeing behind your head while your bill is pushed deeply into the soil, what do you get? The American Woodcock! With its long bill constantly probing the soil for earthworms, its entire skull ...