Cornell Lab Bird Cams on Instagram: "Sound the alarm! Listen to Blue Jays, Tufted Titmice, and Black-capped Chickadees alert as a Cooper's Hawk alights on the fence post behind the Cornell Lab FeederWatch Cam. Cooper's Hawks mostly eat medium-sized birds, which is why you might see them stalking feeders for an easy meal. By broadcasting alarm calls, prey species communicate the presence of danger to other birds in the area, blowing the cover of a potential predator. Want to watch the live stream