Welcome back to our series showing Unique Holidays: May 4th, 2021. Take a look at all the reasons to celebrate today and let me know which one you would most want to take part in and why. Bird Day National Bird Day is celebrated on January 5th International Migratory Bird Day is observed on the second Saturday in May People love birds and bird watching is a favorite pastime of millions of people. This is one of the most popular hobbies, and can be enjoyed by everyone regardless of age. With this popularity, it comes as no surprise that there is more than one day established to recognize, appreciate, and…