Point-source object completeness for the J (left-hand panels), H (middle panels) and K_s (right-hand panels) observations in the WIRDS fields. For each field/filter combination, the completeness is measured for each of the individual pointing regions (i.e. p1 − p5 in the D1, p1 − p9 in the D2, p1 − p3 in the D3 and p1 − p3 in the D4), illustrating the uniformity of the fields. The dashed lines in each case indicate the mean 50% completeness for the given field/filter combination.