繁はん殖しょく期き

noun

breeding season

Used for animals, birds, fish, etc. Refers to the period when mating and reproduction occur.

• この鳥とりの繁はん殖しょく期きは春はるです。

  The breeding season for this bird is spring.

• 繁はん殖しょく期きになると、オスは鮮あざやかな色いろになる。

  During the breeding season, the males turn bright colors.