The incubation and fledging times are unknown, but are probably similar to those of the common house martin, which has an incubation period of 14 to 16 days until the eggs hatch, and a further 22 to 32 days to fledging.
The incubation and fledging periods are unclear, but likely comparable to those of the common house martin, which has an incubation duration of 14 to 16 days until eggs hatch, followed by a further 22 to 32 days to reaching maturity.