night herons in italian nature reserve

animal animals aviary beautiful bird birdhouse birds black blackcapped blackcrowned breeding cage caged capped captivity conservation conserve crowned east eastern enclosure europe european exterior fauna feathers friuli friulivenezia giulia grey habitat heron herons italian italy march nature net nets netting night north northern nycticorax ornithology outdoor outdoors outside park parks perch perched pole preserve preserves province reserve reserves second sitting south southern sunny sunshine two udine union venezia white wild wildlife winter