Bullhead Lake has been home to groups of trumpeter swans throughout the Summer and Fall with as many as 20 swans on the lake at one time. The trumpeter swan was introduced in the Tamarac Wildlife Refuge (6 miles east of Maplelag) in 1987 and has been a major success story, considering only 70 swans existed worldwide in 1932, with a healthy population in this area.  Swans often land on Little Sugarbush, the lake Maplelag is next to, and are a treat to watch and listen to.