buy birdhouse gourd seeds and plant in exactly the right spot...and wait
water every so often...and wait
watch the tiny gourds grow...and wait
leave them on the vine till they cure...and wait
hang them up to dry...and wait
on the perfect spring day, cut a hole in the side with an xacto knife, (be careful) and remove the dry seeds. save these seeds to replant later. fashion a roof with the cutout piece using a coathanger. also, a landing and a hanger should be fashioned out of a coathanger. lastly, hang the newly made birdhouse gourd birdhouse. up and spray paint it the color or design of your choice or leave it plain...and wait
after a day or two hang it out in the perfect place ...and wait
very soon someone will move in.
at least that's how i did it. it took me just about a year from start to finish. that reminds me where did i put those seeds? gotta go.
love,
d