I'm assuming the reason it hasn't been added is because there wasn't a way to confirm the item ID. If not, I am wondering what the reason is. I just checked the item description and it is indeed 5778 (the previous guess was 5757). Item data:
Unknown item found: idiot brain (5778, 658010345)
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5778 idiot brain 658010345 birdbrain.gif food q 0
idiot brain 1 1 crappy 1-1 0 0 0 Unspaded
# Item idiot brain
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Unknown item found: idiot brain (5778, 658010345)
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5778 idiot brain 658010345 birdbrain.gif food q 0
idiot brain 1 1 crappy 1-1 0 0 0 Unspaded
# Item idiot brain
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