Truely's on a roll. All this week she's discovered the joys of food dish dumping in her sleep cage, and today she put her beak through the lanai screen. 
This is why I barelly put food in their food bowls. I ONLY put enough food that my birds will eat per meal.
Which means they get 2-4tablespoons of DRY food in the morning(2 tablespoons for moby as he is housed seperately, and Bokka and Opa are together so they get about 4 tablespoons), and THATS IT. And in another dish, a HEAVIER dish, a ceramic dish, is their veggies for the morning (or birdie bread or whatever I dish up for them). They have seed/dry fruits/nuts in their foraging toys.
Then when I get home they get dinner around 5:30-6pm.
They learn that they much prefer to eat what they have then to dump everything.
I prefer ceramic bowls over SS because they are heavier, and bird typically dont tip them also.
So heavier bowls, and not filling the dish all the way up and only feeding enough PER meal, helps a lot.
Tika learned to snap that bowl out of it's holder in about 20 minutes.These are great! they're made by midwest metal and I LOVE MINE we use them for food, or water or Even bath tubs for the tiels, lovebirds, budgies and conures They can NOT get them out of the holder
the only thing I had to do when I started using them was spread open the holder a little bit (stretch it out) the dish was hard to get in and out
We gave a couple to my b/f's sister who has 3 cockatoos NONE were able to get them out
here's the website for them on Midwest metals, if you scroll down just a bit there's a few stores on the right hand side that sell them.
Snap'y Stainless Steel Bowls, Midwest Snap'y Fit Bowls
Don't know anymore. I bought 3 or 4 of them many years ago and I haven't seen them since. If I remember it was Hagen brand.
I use the quick lock ones with mine. They are easy to remove and lock in place so they can't be dumped.
I may try one of those. Maybe I can get my neighbor to reinforce the welds. To date I haven't found any feed cup that Hank can't destroy. The quick lock one he just pulls on until he breaks the crock out of the holder (breaks not twists). The heavy crockery ones he removes and tosses. The coop cups he breaks the welds on the metal holder. I have the feeders on their AE cage wired in with stainless steel wire. It's a pain to do and undo twice a day, but I don't have a choice.
Yea. If they cant figure out how to nibble them loose, they start to use force and just break them. There is no bowl that is completely TOO proof.
