The bluebird feeds mainly on insects and other invertebrates (such as moths, worms, flies, ants, etc.), but they will search for berries, especially in winter. You will often see them perched on wires ...

What Do Cardinal Eggs Look Like? There are a few ways to identify Northern cardinal eggs. First, look at their general color. The eggs of these birds come in hues of off-white, such as grayish white ...

Among the birds of the world, it is usually the males who have the brightest feathers and the females who are the most drab, ...

You might be able to catch these birds at the feeder this fall, or out in the wild this summer. But only if you listen.

1. Color, Shape, and Size Differences In three species of lovebirds, adult males and females have distinct color differences, a form of sexual dimorphism known as dichromatism. These species and their ...

If there’s one thing you need to know about seasonal feathers, it’s this: Birds in spring are dressed to kill, while birds in fall are dressed to chill. During breeding season, birds employ all manner ...

3. Face and Front Colors/Markings Unlike most other penguin species, you can often tell the male (left) and female (right) apart in Galápagos penguin pairs on sight alone. ©pianoman555/ via Getty ...

Despite its tiny stature, the smallest bird native to North America can survive cold nights in the Rocky Mountains, and some ...

FIFA studies link between women's menstrual cycles and ACL tears. Explore insights into gender-specific sports health ...

BofA's Lutz raised Cardinal Health's target to $170, citing specialty growth momentum and a shrinking scale gap as key upside drivers.

The experiments show that changes in iron levels can lead male mammalian embryos to develop female sex characteristics, regardless of their genetics.

The Health and Human Services Department under Kennedy took unprecedented steps to change how vaccines are evaluated, ...