... Mr. Eirikr Magnusson, in his "Description of a Norwegian Calendar" ("Cambridge Antiquarian Communications," iv. 159), tells us that if the cuckoo was heard on May 1st in the north, it was a nágaukr, "death cuckoo," and boded the hearer death; if in the south, it was a saagaukr, "seed cuckoo," and foretold good luck to harvest; if in the west, it was a rilgaukr, "will-cuckoo," signifying that the hearer's will and wishes would be fulfilled; if in the east, it was an astgaukr, "guile-cuckoo," hinting that the hearer's love would be responded to.
... With regard to this connection of the cuckoo with money, it may be observed that Freya's tears were golden, that gold was named after them, and that Holla, with whom she stands in close relationship, bestowed the gift of weeping such tears—in other words, had the power of granting wealth and fortune. (Provincial Names and Folk Lore of British Birds, Swainson, 1885).