He's cute, and he's a boy for sure. Maybe you knew that, after all you were calling him a he. If you didn't know that- the color of his "nose" (actually called a cere) is how you tell on parakeets. Males have a blue or purple color and females have a tan/ pink color.

One thing that helps with Lost and found ads is not putting too much of a description down. You may get more calls, but if the person can rightly describe the bird you probably have the right owner. If someone claims him you may want to suggest they get his wings clipped.