Obs. [ad. Du. oplooper, f. oploopen to leap up: see UPLEAP v.] A variety of pigeon resembling a pouter.
1735. J. Moore, Columbarium, 36. To trip beautifully with his Feet … without Jumping, which is the Quality of an Uploper.
1765. Treat. Dom. Pigeons, 104. When it approacheth the hen, [it] generally leaps to her with its tail spread, which is the reason of its being called Uploper.
