Bird Feeder Bottle Cap

I saw a picture of a similar design somewhere here a few days ago (https://www.thingiverse.com/thing:2883603). I quite liked it, but I had to adapt it to a bottle that was available to me in Germany.
The bottle you use should have a diameter of 37 mm around the outer part of the thread.
I also provided the same thread, but without the rest of the part, so you can test if it fits onto your bottle.

Edit: I have also added a Version with larger Holes for the Seeds in it because Sunflowerseeds