Remove the label from the soda bottle. Wash the bottle inside and out, then dry completely.
Drill a 1/16-inch hole into the lid and the middle of the bottom of the bottle using the power drill and 1/16-inch drill bit.
Feed the wire through the bottom of the bottle and then through the cap, from the inside to the outside of the bottle. Wrap the wire securely around the neck of the soda bottle. Create a four inch wire loop at the end of the bottle to use as the hanger.
Drill two 5/16-inch holes towards the capped end of the soda bottle on opposite sides of each other. Drill two more holes 1/2-inch above them. Position the holes so that when the perches are inserted they will cross in the middle.
Insert the dowel rods into the holes. Ensure that they support each other by crossing in the center of the bottle.
Cut or drill a small hole two inches above each perch to serve as the feed holes.
Fill the feeder with desired bird feed and hang at an appropriate viewing height from a stand or tree branch.