This project addresses issues related to borders, boundaries, and migration by expanding the capacity of a wall to house migrant birds through an atmospheric and horticultural intervention. Climate change is pushing avian breeding grounds farther and farther north which throws migration timing and food supply off balance. This project serves as a migratory step for at-risk species. The intervention in Battery Park includes a porous, infrastructural wall that hosts ecosystems vital for birds. The design includes a bodysuit that allows humans to enter and safely to interact with birds.