The study of irruption behavior is difficult, because researchers are dealing with an event that happens irregularly.

Ice can cause a bird to lose its ability to fly, making it difficult to find food and escape predators. The common redpolls that are now arriving will burrow into the snow to survive extremely ...

The birds are more hesitant ... The seed heads are filled with the active gray bodies of common redpolls perfecting their gymnastics as they search for the hidden seeds within.

Unique, colorful, musical and social, evening and pine grosbeaks are wild birds that tend to be wintertime visitors that we ...

With so many bird species visiting our gardens and a variety of feeders and food options available, it can be tricky for ...

Charles Darwin predicted the existence of a moth with a long tongue based on a comet orchid's nectar spurs. This was ...

Great Backyard Bird Count” asks people to track the birds they see and hear over a few days. The information can help ...

Columnist Bill Danielson explores the challenge of identifying individual birds and the rare moments that make one stand out ...

Nonstop flights direct from Iowa to Venezuela are rare, unless you happen to be a well-fed pectoral sandpiper. If it finds ...

What is avian flu - and how does it spread? Avian flu (more commonly known as bird flu) is an influenza virus most common in wild birds and poultry. It can spread to mammals - and very rarely to ...

The strain had previously been found only in birds and people. Most bird flu infections in dairy cattle in the US have been the B3.13 variant, or what’s become known as the “cattle clade.” ...

Some maintain a tally of observations in a certain county, province, or country. A portion of a birder’s regional list is ...