Males fast during the reproductive season, unwilling to leave their females or territories.
Some penetrating sunlight is beneficial for the plant during its reproductive season.
Males that are allowed to mate stay attached to the same female for the entire reproductive season.
A male may stay with a female group for two or more reproductive seasons.
This male-male competition ends around the same time that the reproductive season does.
The disease has also led to the reproductive season being less well-defined, with births more spread out throughout the year.
The reproductive season is from January 15 to May 30.
Studies suggest that spawning may occur repeatedly during a single reproductive season.
The average clutch size, however, is 585 eggs and they may have five to 19 clutches in one reproductive season.
The reproductive season of the duck varies according to geographical location.