Ujaku, (烏鵲), (Black magpie), (אוג'קו) is a kata from the middle level of Gyokku ryu. This kata belongs to syllabus of the Takamatzu den Ninjutsu kata.
Uke attacks with a tsuki and a push kick. Tori does outside jodan yuke to both and grabs the hand. Tori does a boshi in right armpit of uke, goes under the hand and throws uke in omote gyaku.