Cowbirds and Songbirds

The higher pitched melodic line represents the songbird population, and the tempo of the melody corresponds to the population. The lower pitched line is the cowbird population, and the bass drum line is the amount of food available. If songbirds have a low recognition score the cowbird melody has reverb added so that it has a less pronounced melody. Also, the more violent the birds are, the "buzzier" their line will sound.