Cut of the top part of the roof bottle, including the cap. Draw a circle on the cap approximately 2,8 -3,2 mm wide for birds like bluetits or tomtits. Punch a hole and cut out with a jigsaw. Cut a fitting big hole in the facade of the house and attach the cap with the other ring. I put my entrance a bit high, may be you will put it a little lower.



Alternately, like i did in the blue rimmed house you could look for an other bottle cap of the right size. Cut top off and squeeze it in a tight hole so it stays without further ado.



If you want to attach a tie-wrap under the porch, now is the time to do so.

Choose a bigger Tie-wrap witch is sturdy enough to carry small birds, and is no use to predators.