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 duration for incubation and fledging is unknown but may be comparable to that of the common house martin, which undergoes an incubation period of 14-16 days prior to egg hatching, followed by a 22-32 day development phase.