It is stated on Premier Guitar's [Rig Rundown](http://www.premierguitar.com/articles/Rig_Rundown_Sigur_Ros) that "Jónsi’s main guitar was handcrafted by former tech Dan Johnson with a single Seymour Duncan ’59 pickup and built-in treble boost circuit. The guitar is called 'Bird,' due to the bird inlays."more
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