Caille is the French word for "Quail", a kind of poultry, used for various French dishes. Quail eggs are also a wonderful food even if it is only boiled and in my home country Philippines, boiled quail eggs are taken as snacks.
In the food context, "châtaigne" is the French word for "chestnut". Chestnuts are a type of nut that are often used in both sweet and savory dishes in various cuisines.
