It was the first holiday in the United States dedicated to the celebration of birds. Babcock intended it to advance bird conservation as a moral value. It is celebrated on May 4 of every year. ... National Bird Day takes place every year on January 5.
Babcock founded the day, observed annually on May 4th, to advance bird conservation as a moral value. Other Bird Holidays and known dates of celebration: National Bird Day is celebrated in the United States on January 5 of each year. International Migratory Bird Day is celebrated on the second Saturday in May.