The base of the nest appeared to be cemented to the rock with mud. Mean nest height was 14.8 cm and depth 7.4 cm. The mean outer width and inner width were 21.5 cm and 13.1 cm respectively. Mean height from the ground was 125.8 cm. Most nest sites were about 6 m from water with 60% rock cover. The nests were mostly fully concealed and nesting success was directly related to it. The birds show high site fidelity; occupying and nesting near their previous season nests. The clutch consists of 2 to 4 eggs. The eggs are pale salmon pink with speckling. The eggs are incubated for about 16 or 17 days by both the male and female.