Figure 3 Variation in house sparrow, Passer domesticus, abundance between environments with different levels of urbanization. In Boxplot, the box is delimited by the 1 st and 3 rd quartiles, the ...

The small town of Spencer in eastern Idaho is often referred to as "The Opal Capital of America." After all, it's here you'll find the largest opal mine in the state — Spencer Opal Mine — where you ...