Bluebird fans helped scientists collect invasive house sparrow eggs, revealing higher-than-expected heavy metal levels from ...

Nesting Cycle Chipping Sparrow nest by Red Wing Birding More than 700 bird species breed in North America, and the variations in their behaviors are fascinating and complex. Different species find ...

Birds exhibit a wide variety of fascinating nesting and offspring-rearing behaviors throughout their lifecycle. Against the odds, they protect and guide their young from hatching to leaving the nest ...

In early March, birds that have been gone all winter begin appearing at my feeder. One of the earliest of these spring ...