Ask Questions, Get Answers
Asked by cgflewelling - 1 year ago
All Answers
Sort By
joensf Level 83
Answered 1 year ago
See link

Wrens prefer a house that has an entry hole dimension of 1 1/8 inches, any larger and house sparrows and other less desirable birds will use them.
The floor should be 4 inches square and 3-6 inches below the entry hole.
Do not add or buy any birdhouse with a perch. The birds don't need it, whereas house sparrows and other less desireable birds will have easy access if perches are used.

House Dimensions
These small birds require small houses; they only need enough size for their nest and babies. The bottom floor of the house for both the Carolina wren and the house wren should measure 4-by-4 inches. The height of the sides should measure 8 inches tall angled down to 6 inches. It doesn't matter whether the top angles toward the front or toward the back; this will depend on where you place the box. This allows for a sloping roof that will help shed rain water.
Entrance Hole
The size of the entrance hole is one of the most important factors when it comes to designing a birdhouse for a native species. If the entrance is too big, invasive species or larger native birds can quickly steal the home from the wrens. House wrens require a hole with diameter of 1 1/8 inches to 1 1/4 inches. The Carolina wren requires a slightly bigger hole -- a diameter of 1 1/2 inches. Drill the hole approximately 4 to 6 inches above the floor.

Compliments from
rredrick Level 49 / retired
Answered 1 year ago
Compliments from
Sparky5458 Level 63 / Retired Golfer
Answered 1 year ago
I used to make and sell birdhouses. A one inch hole is big enough.
Compliments from
Related Questions
Need Answers Instantly?
About this Question
Open Question
- Compliments
3 Answers
Question Discussion
Top Users this Week
kelarsen Level 44 Grad School
labarca Level 69 PhD
rredrick Level 49 Grad School
joensf Level 83 Professor
MorninDaisy Level 24 High School
Additional Links