Domestication of Red Jungle Makes for Smaller Brain at Same Time

Did I read the study correctly? The brains were actually bigger but a smaller percentage of body weight?
 
Biggest birds tended to have biggest brains, but brains of biggest birds tended to be proportionally smaller relative to the larger bodies. I think they were selecting for size as well; the calmer birds appear to be larger. It can be hard to select for one trait only, especially when multiple loci involved.
 

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