Parametric Bird Feeder Tray

I needed another food tray for my budgies so that the one male in our flock of 4 wouldn't prevent his sister from eating. I am hoping a second food tray will be harder for him to control.


Safety note:
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I don't know for certain which plastics are safe for birds. I suspect ABS would be OK, and PLA would be fine (depending on the dyes/pigments used). __Use at your own (or your birds own) risk.__ Off the top of my head, the possible risks are:
* Chemical residue (toxici