KanjiJLPT N1
Female

feminine, female

Mnemonic

A bird stops mid-flight and lands at her nest, a tiny spoon clenched in her beak. She's the female of the flock — the devoted mother who scoops up insects with that spoon to feed her chicks, while the male just perches nearby doing absolutely nothing.
Additional thoughts
Picture the mother bird hovering (stopping in the air) with a comically small spoon, shoveling food into hungry baby mouths. The spoon = nurturing tool, the stop = her patient dedication, the bird = her species. Female birds do the heavy parenting work.
Quick recall
A bird stops at her nest with a spoon — she's the female, feeding her young.

Details

The keyword for 雌 is female. This kanji refers specifically to the female sex of animals, birds, and other living creatures, as opposed to the male. It is used in biological and zoological contexts to denote the sex that bears offspring or produces eggs. By extension, it can also carry connotations of being passive, gentle, or subordinate, though its primary usage remains the designation of a female animal.
On'yomi
Kun'yomi
め-、めす、めん