Bats Hunt Above the Garden
Some may wonder how we know what bats are flying above the GNG. We record their echolocation calls. These recordings are run through software that creates a sonogram, which is then annualized by classification software. Although the software algorithms are quite accurate, we confirm the results by visually looking at the sonogram on a computer screen.
The most common bat recorded in the garden (our recording unit is pictured here) is the Canyon bat, followed by Mexican Free-tailed bats. Recently, over a two-week period, we got recordings of a Yuma myotis. This was surprising because this small bat is usually associated with flowing or open water environments.