Good afternoon, Baby birds need a diet that is high in protein (i.e. insects, grubs, worms...not cat food, etc.). It will probably not fair well on a seed diet at this stage in its development. A licensed wildlife rehabilitator should care for the bird. To find a rehabilitator in your area, go to the "Find a Wildlife Professional" page on this website and scroll to the bottom of the page. Type in your county and the site will provide you with a contact list of rehabilitators who should be able to help you. Birds can carry Salmonellosis. So you should wash your hands with hot, soapy water after handling the bird. I would recommend touching the bird as little as possible. It is stressful for wild creatures to be handled by people, even when they are young. The sooner the young bird can be taken in by a trained rehabilitator the better. Good luck. And thanks for writing.