SENTRY DUTY

SENTRY DUTY

BY KIERAN LINDSEY, PhD JAY!  JAY!  JAY! Uh oh… I’ve been spotted! The Blue Jays (Cyanocitta cristata) on guard have ratted me out. Halt! Who goes there? Thought you could just slip past, did you? Not on my watch. Hey everybody—look! Look! Over there!” Now every...