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 ...

The beautiful male cardinal bird in this hilarious YouTube clip is very interested in a female and is not being subtle about it! The obvious way he is checking her out may seem amusing to us, but ...

As it turns out, the easiest way to tell the difference between a male and female cardinal lies in the bird's coloring. As is typical with birds, the male's feathers are brighter and more flashy ...

The male Northern Cardinal is hard to miss. Its vibrant red head and black eye mask stands in stark contrast to winter’s bleary hues, spring’s pastel florals and summer’s bright greens.

Do you find yourself somewhere along the spectrum between casual nature enjoyer and dedicated bird-watcher? The Virginia Cooperative Extension (VCE) has created a winter birding guide to allow Virg… ...

The beautiful male cardinal bird in this hilarious YouTube clip is very interested in a female and is not being subtle about it! The obvious way he is checking her out may seem amusing to us, but ...

For the cardinal, the bright red side and the head is male, and the brown side is female. “What’s going on is that the bird has both male and female gonads, and they are both actively ...

The male and female nuclei go on to form the two separate halves of the same bird. In this scenario, the bird can be either sex on either side, depending on how the female's chromosomes are split ...

The bird appeared to be a bilateral gynandromorph: female on one side and male on the other. “It was just incredible,” Dr. Spencer said. “We were lucky to see it.” ...

Researchers with a team monitoring bird populations at Powdermill Nature Reserve, in Rector, Pennsylvania, netted a surprise on September 24: a rose-breasted grosbeak with bizarre coloring. It had ...

A zoologist from the University of Otago in New Zealand spotted a rare bird with distinct half-male and half-female plumage.Hamish Spencer and amateur ornithologist John Murillo took photos and ...