Marshall (1942) Progne chalybea San Miguel (Dec. 1941) Jan (1942) Common about largest buildings in town. V. de Santa Ana : about 10 seen in loose flock over summit of V. de Santa Ana. Did not return. San Salvador : Abundant along streets and perched on roofs & inches of buildings. Foraged over traffic from 20' to 75' roughly. Frequently perched. Present at every stay in the city. At our last stay in May the rainy season started and one evening at sun-set a cloud-burst occurred. The Martins all got under cover in recessed windows and under eaves and especially under the enlarged eaves over shop entrances. They crowded every available perch and sat side-by-side in rows within reach in the doorways. I could not determine where they went to roost after the rain when it was dark. Probably spent next.