If you want to attract the Carolina Wren to your yard by feeding them, listed below are some of the top food options these birds prefer.
To attract the Carolina Wren to your your yard using bird feeders listed below are some feeders they prefer to use. The pictures below are some examples of each category.
Any size, style, or shape of tube feeder can be used that is designed to be filled with hulled sunflower seeds, or peanut hearts.
Any style and shape of birdhouse that is closely related to interior dimensions of a 4" x 4" floor to a 5.5"W x 6.5"L floor. Walls that are 6" - 8" in height, an entry hole that is 4" - 6" above the floor and 1.5 inches diameter. The entry hole can face in any direction 3' to 10' off the ground and they prefer shaded areas. If your going to place more than one birdhouse for the Carolina Wren, space your birdhouses 330' apart to avoid territorial denomination.
The Carolina Wren can have a slotted hole of 1 1/8" to 2 1/2 instead of a round hole. Meaning; the distance from the top of the front panel to the bottom of the roof is 1 1/8 inches apart and can be the width of the house. See the illustration below for a better understanding. (The picture of the birdhouse below is for bluebirds, so the slot is larger than 1 1/8", but the idea is the same). Wrens are about the only bird, that can live in a hanging birdhouse, even though it is not necessary to hang their house, mounting a wrens houses will work also.
Wrens are about the only birds that do not mind a birdhouse that sways in the wind, when the birdhouse is hung by a chain or nylon rope. Even though it is not necessary to buy one of these type of birdhouses.