Have you ever wondered what makes that high-pitched whistle during winter nights? It’s the Spring Peeper (Pseudacris crucifer). This tiny, nocturnal tree frog is one of 14 species known to live in Forsyth County. Spring peepers breed from October to March in Georgia. Males chorus at night to attract females. They live in woodlands or areas with brushy growth, and they like temporary ponds, so with all the rain we’ve had recently, they may be quite active. Step outside this evening and listen for them, or listen here.