an adolescent black-crowned night-heron, endangered species, is perched on ledge of wooden pier while visiting the chicago river d

adolescent alone animal avian beak beautiful bird black blackcrowned capped chicago crowned downtown during endangered feathers gray green heron illinois landscape ledge loop midwest nature night nightheron one outdoor park people perched pier plants post rare relaxation resting river riverside riverwalk single species summer tourism view visiting walkway water while wildlife wing wooden