My canary finished molting. Can I feed it regular bird food?

How much a bird sings varies greatly on the individual bird so it would be impossible to tell you when he will sing again or not. Making sure he is on a balanced diet, and having your vet take a look to make sure there aren't any lasting health issues caused by the malnutrition earlier is best to make sure Ringo is still healthy and happy.

This may be "normal" for Ringo. Molt times are only estimations based on 'most' birds. Stress, illness or diet can play large roles in molting. You can have him examined by your veterinarian to diagnose any illness or to confirm good health. Confirm proper environmental parameters and diet. There is no way of determining when he will begin singing again.

I've not heard of food alone aiding singing, but the right nutrition can definitely help Ringo feel healthy enough to want to sing. Spending time with him, making sure he's getting enough light, and providing fun toys and other enrichment can also help encourage him as well.

Molting is a normal behavior where birds lose their old feathers and grow in new ones. Making sure Chicky is on a balanced diet for her species is a great way to ensure she has the right nutrition to regrow her feathers. Adding in a few extra fresh fruits and veggies, or even some egg food can also give a little extra protein and nutrients to help. Most birds will finish molting and have new feathers in after about a month.

The cuttlebone helps to provide the bird with minerals, but they don't really tend to eat it massively. As long as it is available in the cage the bird will pick at it as necessary. One cuttlebone could last a small bird years. Ensure you are feeding a good quality seed mix and Ringo should be great.

Offer a fortified seed mix supplemented with cooked beans and vegetables (carrots, peas, etc). Fresh water should be available at all times. A mineral block and/or cuttlebone should also be placed in the cage. Keep the room at a steady temp and keep the cage away from strong drafts. You can mist him with warm water a few times weekly to promote preening and healthy plumage. Monitor for lethargy, decreased appetite and loose droppings. If necessary, have him physically examined by your veterinarian or an experienced avian veterinarian.

Molting can last 6-12 weeks. Some canaries will complete a molt outside this time frame though. Increase proteins and fats to aid feather regrowth. Flax, niger and hemp seeds can be offered. Protein can be in the form of scrambled eggs or small crickets and mealworms. Bathe or mist with warm water to promote preening and healthy plumage. Providing full spectrum lighting, avoiding stress, limiting daylight to 8-10 hours and keeping room temperature between 68 F and 70 F will aid in molting.