National Hummingbird Day is observed worldwide every first Saturday of September, with the next celebration occurring on September 6. This holiday is dedicated to the smallest birds in the world, specifically the hummingbirds, which belong to the family Trochilidae. There are 362 species of hummingbirds, all native to the Americas, with most residing in tropical regions. The day encourages activities such as reading about hummingbirds, watching documentaries, visiting zoo exhibits, and supporting hummingbird conservation organizations. Additionally, participants often promote the holiday on social media using the hashtag #NationalHummingBirdDay. The origin of National Hummingbird Day is unclear, but it serves to highlight the ecological significance of these birds, which are important pollinators due to their feeding habits on nectar and small insects.