What specific mineral source must remain constantly available for female Zebra Finches year-round?
Answer
Cuttlebone or a mineral block for calcium
A constant, separate source of calcium must be provided within the cage environment at all times, specifically by offering items like a cuttlebone or a mineral block. This mineral is absolutely critical, especially for female birds, because the process of producing eggshells rapidly depletes the female's body reserves of calcium. Providing this source allows the finches to self-regulate their intake, ensuring they consume the necessary mineral for shell formation whenever reproductive demands dictate, making its constant availability non-negotiable for females.

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