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

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 ...

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

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 ...

"We hope to see the results of the dedicated efforts of farmers, landowners, and volunteers when we carry out the next ...

Q: The amount of effort that goes into a Christmas Bird Count varies quite a bit across years and count circles. How do you deal with this issue when you calculate abundance trends? How do you know ...