There are many different styles of nesting boxes, including those that are decorative and bird-specific. All bird houses should meet these six requirements:
1) Correct size – Entrance hole size, and house length, width, and depth need to be designed for specific species.
2) Ventilation holes - Air vents prevent heat build-up and keep baby birds safe.
3) Clean easily – Cleaning the house after each nesting helps deter parasite infestation and a predator’s ability disturb a nest that is built on top of old nests making it closer to the entrance hole.
4) Mount or hang easily - Wild Birds Unlimited has APS birdhouse poles or hanging chains for houses.
5) Durable - Bird houses should be made with material that will protect the birds and withstand several seasons. A baby ladder inside is also nice.
6) Drainage holes - In order to keep babies dry and safe, drainage holes should be placed in the bottom of the house.
Of course not all birds use nest boxes and you can encourage other birds to nest in your yard by providing nesting material and an attractive habitat.
5 Tips to Attract Birds to Nest in your Bird Houses http://bit.ly/xETceZ
Common Bird House Problems http://bit.ly/wrWzyN
Which Way Do You Face a Birdhouse? http://bit.ly/AD43TW
Don’t use treated lumber to build a birdhouse http://bit.ly/x2pIG0
When do birds begin nesting? http://bit.ly/wbJ3kE
DO NOT Collect Dryer Lint for the birds to use as nesting material! http://bit.ly/wC5HcO