What Is a Cuttlebone and Why Do Birds Need It?

By UPCO Pet Supplies | Small Business Pet Shop in St. Joseph MO | Published: 2026-10-29

Category: Tips & Care

A cuttlebone is a natural calcium supplement that supports strong bones, healthy beaks, and proper eggshell development in pet birds. Learn how to use it and why it's essential.

Quick answer

A cuttlebone is the internal shell of a cuttlefish, sold as a natural calcium supplement for pet birds. It supports bone strength, beak health, and eggshell formation while satisfying your bird's instinct to chew.

Why calcium matters for pet birds

Calcium is the most abundant mineral in a bird's body. It is essential for nerve function, muscle contraction, blood clotting, and—most visibly—for building strong bones and a healthy beak. Breeding females need extra calcium to form eggshells, and growing chicks rely on it for skeletal development.

A diet that is low in calcium can lead to weak bones, egg binding, poor feather quality, and even seizures. While many commercial pellets are fortified, offering a separate calcium source like a cuttlebone lets your bird regulate its own intake.

Cuttlebone vs. mineral block: what is the difference?

Both provide calcium, but they are made differently. A cuttlebone is a natural product harvested from the sea; it is soft enough for birds to scrape with their beaks and contains trace minerals. A mineral block is usually compressed from ground calcium carbonate and may include added iodine or grit.

Cuttlebone is generally preferred for small to medium birds because it is easier to chew. Mineral blocks are harder and last longer, which can be useful for larger parrots that wear down their beaks quickly. Neither is wrong—it depends on your bird's size and chewing habits.

Frequently asked questions about cuttlebone

How do I attach a cuttlebone to the cage?: Most cuttlebones come with a metal clip or wire. Simply slide the clip over the flat side of the cuttlebone and hook it onto the cage bars at a height your bird can reach. If the clip is missing, you can use a stainless steel vegetable skewer or a small carabiner. Place the cuttlebone near a perch so your bird can access it comfortably.
Can all birds use a cuttlebone?: Yes, most pet birds—including budgies, cockatiels, lovebirds, canaries, finches, and small parrots—will use a cuttlebone. Larger parrots may still enjoy it, but they might break it apart quickly. For big birds, a mineral block or calcium-rich pellet diet may be a better primary source. Monitor how fast your bird consumes it; replace when only the thin hard backing remains.
Do I still need a calcium supplement if I use a cuttlebone?: For most birds on a balanced pellet diet, a cuttlebone provides enough supplemental calcium. However, breeding hens, molting birds, or those recovering from illness may need extra calcium. Consult an avian vet before adding liquid or powdered calcium supplements. A cuttlebone is a maintenance supplement, not a treatment for calcium deficiency.
How often should I replace the cuttlebone?: Replace it when the soft inner part is mostly gone and only the hard outer shell remains—typically every 2 to 4 weeks, depending on how much your bird chews. If the cuttlebone becomes soiled with droppings or wet food, replace it sooner to prevent bacterial growth. Check weekly and swap out before it becomes a hygiene risk.

Recommended product

L’Avian Plus® Cuttlebone for Birds – Natural Calcium Supplement: L’Avian Plus® Cuttlebone is a natural source of calcium that supports strong bones, healthy beaks, and proper eggshell development. It provides a clean, ready-to-use calcium supplement that satisfies your bird's chewing instinct without added artificial ingredients.
L’Avian Plus® Cuttlebone for Birds – Natural Calcium Supplement