Figure 1. A pair of Japanese quail. If the birds have not been subjected to genetic. selection for bodyweight, the adult male quail will. weigh about 100â140 g, while the females are. slightly heavier, weighing from 120â160 g.
The temperature of a desert is also a defining and unique characteristic. Most deserts are warmer during the day than they are at night, and the difference in temperature is quite drastic. The average daytime temperature is 100Â°F, while at night the average temperature is 25Â°F. This large temperature difference is due to low amount of moisture in the desert air.
High desert areas typically have the greatest diurnal temperature variations. Low lying, humid areas typically have the least. This explains why an area like the Snake River Plain can have high temperatures of 38 Â°C (100 Â°F) during a summer day, and then have lows of 5â10 Â°C (41â50 Â°F).