The Swallow Condiminiums is a nickname for the holes made by the birds in the muddy sides of the riverbank on the Missouri River in Wolf Creek Montana.  They are impressive for their numbers but you wouldn't know it from this painting. On the other hand from a boat passing beneath them the sound of the birds screeching and their swooshing in with fresh caught caddis flies in their beaks for their nesting young ones is impressive.  There's also a whirlpool under the condos which has been the subject of at least one work of literary fiction.