This chapter studies birds as an instructive tool for thinking about adaptation in humanistic studies, opening up a small inquiry into the shared ecology of bird and humankind with an end goal of assessing their pseudophylogenic interrelationship in the cinema, and specifically in Hitchcock’s eco-horror, The Birds (1963). Acknowledging the diverse adaptive influences on the film deepens our understanding of it as part of a complex network of bird signifiers; in the reverse, The Birds ultimately influenced technology in an act of biocinemimicry, a circuitous association that emerges when film becomes the bioelement to be mimicked and adapted.