The Striated Swallow (Hirundo striolata badia) is a resident as well as a winter visitor to Malaysia. According to Wells (2007), resident birds start breeding in early February and April, laying eggs in late April to late June. They collect mud pellets that they plaster onto the ceiling of caves or any suitable surfaces to build bulb- to flask-shaped structures with horizontal entrance tunnels.
Dato’ Dr Amar-Singh HSS documented two pairs of Striated Swallows on the ground collecting mud for their nests on 15th November 2009. The location is Tambun Interior, Perak, Malaysia. The area has limestone hills nearby for nesting and apparently the birds are starting to breed early. They are seldom seen on the ground, coming only for nesting materials.
Wells, D.R., 2007. The birds of the Thai-Malay Peninsular. Vol. II, Passerines. Christopher Helm, London. 800 pp.