Why have my cocktiel's bottom beak suddenly grown long?
I have had him for several years and always maintain a cuttle bone in his cage.
Abnormal beak growth can be a sign of a poor diet. I propose taking your bird to an avian vet and discussing with him your birds diet and what they think you can do to improve it.
It can also be a sign of a few different diseases, so you really necessitate to take it to the vet.
usually it's because he has nought to chew on. Cockatiels, like parrots, have beak that grow constantly, just like mice, squirrels, beavers and other rodents have teeth that grow constantly. So they must own something to chew on the keep their beaks in right condition. A wooden toy or perch will help them keep their beaks within shape. Be careful about what kind of wood you endow with him. I would certainly not recommend anything from China because too many things from China are poisoned and this will eventually kill him. Don't tender them sandpaper, sand, gravel or other grit because if they eat it it will make them impressively sick. Grit or sand does not help them keep their beaks within shape. Some bird foods have grit in them so avoid those too--use food for cockatiels or small conures or parrots, which own no grit in them.
If it is so long that it is interfering with eating or it is cause some injury, then he needs to see a vet to have his beak trimmed.
Answers: Cuttle bones actually do little to nought to help trim beaks. They're much too soft. Try giving your bird some soft wood to chew on; try yucca wood. Most pet stores sell it. Though I don't own a cockatiel, my masses budgies love chewing on it and we've never had any overgrown beaks. You can also give him little bird pinatas or other chew toys, as ably as harder veggies, such as carrots. These should trim his beak down, but if it's still bad in a week or so, bring him to a vet to get his beak trimmed.
It's normal to grow and it needs to be trimmed by a vet. It's not necessarily a disease, but you can't be certain until a specialized person examines the bird.