Large numbers of swallows of several species are using Montrose Dunes for feeding and resting. This happens every year in mid summer and lasts only a few weeks. The swallows like to perch on the rope that cordons off the protected areas of the Dunes. The majority are Barn, Tree, and Northern Rough-winged, but a few Bank and Cliff Swallows are also seen. Most are probably local nesting birds and include many fresh juveniles. For some reason Purple Martins don’t perch on the rope but they do use the Dunes for feeding.