This sand is calibrated to the optimum size to be ingested by these small birds (0.8 – 1.2 mm).

Suitable for canaries, wild finches, estrildid and small parrots.

Its consumption is essential to ensure optimal functioning of the gizzard and the digestive system in general.

The function of Grit flint is purely mechanical and should not be confused with calcium grits, which have a nutritional function as a source of calcium.

Unlike calcium grits, grit flint is insoluble and does not dissolve in the gizzard by gastric acids.

In the absence of a supply of grit flint, it may happen that birds ingest calcium grits as a substitute in search of a mechanical action that will not occur completely, which can lead to potentially harmful hypercalcemia.

It is recommended to put grit flint freely available to birds in a separate container.

The amount consumed will be a function of the characteristics of the diet and the level of specialization that the species has in the consumption of seeds.

The most purely granivorous species are the ones with the highest requirements in mechanical grit (insoluble) have.