Avian Calcium is a pure calcium supplement for all bird species.
Avian Calcium uses only precipitated calcium carbonate which is white in color and essentially lead-free.
Impurities in other sources of calcium carbonate (e.g., Oyster Shell Calcium) cause the supplement to turn gray in color.
The calcium carbonate particles in Avian Calcium have a unique shape and extremely high surface area per gram, resulting in increased bioavailability of calcium. Calcium is essential for the formation and maintenance of strong bones, egg production, blood clotting and other vital life functions. With Avian Calcium, you can rest assured that your birds are getting a highly bioavailable source of calcium carbonate that is free of harmful impurities.