Molt

Molt: To shed a cuticle or exoskeleton during a growth phase.

Molt: To cast or shed the feathers, skin, or the like, that will be replaced by a new growth. In snakes, molting refers to “shedding the skin”. In birds, the replacement of all or some of a bird’s feathers is called a molt. Molting is affected by a number of factors, including an animal’s age, sex, reproductive status, and environmental effects.…

Vagina

In Mammals: The vagina is the copulatory portion of the female’s reproductive tract. The vestibule portion of the vagina also serves for passage of urine during urination. The vagina also serves as a canal through which young pass when born.

In Birds: The vagina is the portion of the avian reproductive tract where the bloom/cuticle is added to the egg just prior to the egg being laid.

Avian female reproductive tract

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