Mayday for Mutts is celebrated on the first Sunday of May and focuses on raising awareness about mixed-breed dogs. This day encourages the adoption of these dogs from shelters, where many wait for a forever home. It highlights that mixed breeds often possess qualities such as health, longevity, and affectionate companionship, making them just as valuable as purebreds. Common customs include treating pets to gourmet treats, taking them on adventures, pampering them with spa days, and hosting parties for dogs and their friends. Additionally, participants are encouraged to volunteer at local shelters or donate to mixed-breed dog rescues. The day serves as a reminder of the many mixed breeds in need of loving families, promoting the idea that a dog's worth is based on its personality rather than its pedigree.