Cactus Wren - Ross Feldner

This “giant” wren lives in the deserts of the southwestern United States and is well adapted to its environment. It can survive without any free water. Eating cactus fruits is an important source of water along with a diet of insects and certain plants. Cactus Wrens serve as pollinators, sipping nectar from saguaro blossoms and eating insects trapped within.

The Cactus Wren is not much of a flyer and usually forages on the ground, turning over leaves and other objects in search of food. As temperatures rise, they will go to shaded areas to conserve water and continue looking for insects which are more sluggish and easier to catch in cooler environments.

The Cactus Wren has proved adaptable and has learned to coexist with humans effectively, using human materials and structures for nesting — even learning to take insects from vehicle radiator grilles!

They build multiple nests with the first nest of a season being an existing one that has been renovated. Subsequent nests are usually built from scratch. While the female lays a clutch in one nest, the male will start to build a second. When the first brood fledges, the female will assist in building the next nest.

Cactus Wren Fun Facts

It is the largest wren in the US.

State bird of Arizona.

Its main call is a harsh and raspy series of jar-jar-jar that sounds like a car trying to start.

The Cactus Wren is found only in the United States and Mexico.

They live and feed in pairs.

Cactus Wrens are monogamous.

Both parents feed the young.

The genus name Campylorhynchus is Greek and roughly translates to "curved beak."

Territory is defended by fluffing tails and feathers and vocal scolding.

The average caloric need of a developing chick is about 15 medium-sized grasshoppers per day.

The Cactus Wren’s nest is the size and shape of a football.

It is an active mobber of nest predators.

Click here to watch a male calling.

Click here to watch Cactus Wrens foraging and nesting.

 

Rachel Carson Council
8600 Irvington Avenue  | Bethesda, Maryland 20817-3604
(301) 214-2400 | office@rachelcarsoncouncil.org

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