Seaford Box with extra venting. Back panel lowered 1/2in.

Seaford Box regular venting setup.

Seaford Box standard front ventilation.

Texas Bluebird Society Nestbox view from side showing top ventilation.

Video Link:

‪https://www.youtube.com/watch?v=EOndui2dDFc

Notes:

Light Tan Seaford Box vs Light Tan Seaford Box with extra ventilation. Also Texas Bluebird Society Bluebird Box Unpainted vs Light Tan Painted Texas Bluebird Society Bluebird Box.

Results:

The Seaford Light Tan Box with extra venting was cooler by up to 1.6°F than the regular vented Light Tan Box.

The Light Tan Texas Box was up to 4.5°F cooler than the regular unpainted Texas Box.

Conclusion:

The three factors tested in these experiments are Color of Box, Ventilation and Heat Shields. All three are significant but color of box is the most important.

Recommendation:

Use a light colored paint and/or heat shields to protect your nest boxes. Also make sure your boxes have adequate top cross ventilation. The best cooling is obtained using a combination of light color, good ventilation and light colored heat shields.