Ключевые слова: animal, annual, appreciation, april, awareness, background, banner, bat, bat appreciation day, biodiversity, black, celebration, dark, day, design, ecosystem, environmental, event, fauna, fly, holiday, icon, images, international, isolated, label, mammal, nature, night, nocturnal, observe, photo, poster, protection, rubber, shape, sign, stock, symbol, text, toy, wild, wildlife,