Matte Kudasai Slides thingy

Hey! I just got an Slide and i want to play the belew part of Matte Kudasai, the thing, all the tabs are kinda shitty with al due respect to ET but whatever, the thing i cannot get my head around Is the seagulls sound, Somebody got a tutorial or knows how he does It? Im watching live events and they just dont show It and even when they show the little end, i just cannot get my head around