Having to open the cage doors every day to place food is a task that might end in a bird flying away, so I made this feeder that can be loaded from the outside. The zip file contains 2 sizes, one bigger than the other.

The model has 3 pieces:

The base, where the food is dispensed.

The connector, that allows the food to travel from the top to the base.

And the Top piece, where the food is placed and stored.