The 3 minutes video below describes the full project in detail.
An interspecies 'corn-inversion' device was designed to help restore Nitrogen to the land. The feeders encourage birds to perch, eat, and poop (bird feces is rich in Nitrogen). There is also a fiber optic 'corn-silk' on top of the feeder. It is powered by a series of 3 earth batteries. It becomes visible at night, mirroring the Seven Sisters constellation.