By observation alone, I suggest the Curved-billed Thrasher is a bit of a bully. My observations hold no scientific weight, as it's only my opinion. Still you might agree, he has a bent to intimidate.
It's unknown how other birds see the Curved-billed Thrasher's demeanor and formidable appearance, but most birds give way when a thrasher arrives on the scene.
Not antisocial, rather 'anti-sharing', the Curved-billed Thrasher prefers to dictate who will share the bounty where one exists.
As a large songbird armed with an outsized bill... a sizable weapon... the outcome of conflicts is predictable.
Birds like this Mourning Dove back off when push comes to shove.
An insect eater with an 'attitude' best describes this southwestern desert dweller.
Credit: Cornell Lab of Ornithology, All About Birds