Here is the new updated version without a base, if you want to hang the feeder http://www.thingiverse.com/thing:2181266

Here is a bird feeder to screw on the bottom of an apple juice bottle you get at Wallmart https://www.walmart.com/ip/Great-Value-100-Apple-Juice-96-oz/10415325. This is big enough for whole sunflower seeds to be used. Use some sticks or 8mm wood dowels for the pegs. It has holes for rain water to drain out.

I mount the feeder on a tube of PVC pipe. If you want to hang the feeder, then just lower the print in your slicing software to get rid of the 1 inch bottom stand.

Printed with no support in ABS with active cooling.