In Northern Europe April brings the cuckoo, and in many parts of England the 21st of April was seen as the day the cuckoo arrived.
The cuckoo could forecast the future
During the Middle Ages people were fascinated by this strange bird and built up a number of fanciful notions concerning its behaviour. The cuckoo was believed to be able to forecast the future, and as a result of the popularity of this talent it did not have enough time to build its own nest; hence its habit of laying its eggs in the nests of other birds.
If you are wandering about the countryside in April keep some coins in your pocket, because if you have money on you when you hear the distinctive cry of the cuckoo you will be financially secure for the rest of the year. The Scots however are less likely to be fond of the cuckoo since tradition has it that if a cuckoo calls frequently it will rain. This idea has some relation to fact as poor weather or ‘gowk storms’ are indeed more common at the time in spring when the cuckoo appears.
Pisceans should keep an ear out for cuckoos calling as they are considered to be their lucky bird./\