var arrayFacts = [ "Cave Wren:

The 79 species of wren are from the family 'Troglodytidae,' which means cave-dweller. Some wrens tend to forage for food in dark crevices.", "Passionate Passerine:

The wren's alarm call is a loud and fast teck teck teck. When it sings, the wren sometimes trembles from the force it puts into its song, which usually lasts only five seconds.", "Wren Wrath:

The Cactus Wren is no pushover, and actively mobs predators that threaten the nest.

One pair of Cactus Wrens was seen attacking a squirrel with such force that it was impaled on the horns of a Cholla cactus!

The wrens continued to peck the squirrel until it fell to the ground and escaped.", "Bad Neighbors:

The Cactus Wren is known to attack the nests of other bird species, puncturing eggs with their beaks or removing them from the nest all together.

Scientists believe that they have reduced Verdin (another desert bird) populations through these attacks. ", "Rocking Wren:

The remarkable Rock Wren can sing over 100 types of song, which it learns from neighboring birds.", "House Proud:

For some unknown reason, the Rock Wren builds a path to its nest out of flat stones and pebbles.

While their nests are usually hidden in rock crevices, the path can signal the nest's location. ", "Camel of the Bird World:

Rock Wrens do not need to drink water because they absorb moisture from their food. Even in captivity, Rock Wrens refuse to drink available water.", "Wren Romance:

In many species of wren, both members of a pair sing together.

The male and female will sing different parts of a song, usually interweaving their tunes to the extent that they sound like one bird singing.", "The Caged Bird Sings:

One male Carolina Wren in captivity sang almost 3,000 times in one day.", "Wren Romance (Part II):

Wrens usually pair for life and stay close to one another year-round.

They even forage and move around the territory together!", "This Old Nest:

The male House Wren builds the structure of his nest out of roughly 400 sticks!

When he pairs with a female, she will add the nest cup and lining. ", "Loud and Proud:

In proportion to its size, the Winter Wren sings 10 times as loudly as a crowing rooster!", "Wandering Wren:

Wrens most likely originated in the New World. Of the 78 wren species, only the Winter Wren is found outside of the Americas.

Some scientists believe that the Winter Wren crossed over the Bering Straits to colonize the old world.", ];