Only two bird species have ever been shown to undertake what scientists call 'itinerant breeding': nesting in one area, migrating to another region, and nesting again there within the same year, to ...

I’ve recently been doing surveys for Marin’s Breeding Bird Atlas project. The basic idea is this: divide the county up into 221 blocks of about 1,500 acres each, recruit skilled volunteer observers to ...

As temperatures dip low in the Northern Hemisphere's deep midwinter, many birds are no doubt feasting on the seeds and suet hanging outside many of our homes. More than 40 percent of U.S. households ...

Nesting Cycle Chipping Sparrow nest by Red Wing Birding More than 700 bird species breed in North America, and the variations ...