woodpecker locally known as bulbul bird, perched amidst the dense canopy of a lush tropical forest, in Bangladesh

woodpecker bulbul bird forest tropical forest deep forest wildlife nature birds perching trees foliage greenery natural habitat avian biodiversity ecosystem environmental wilderness serene peaceful outdoors conservation ornithology branches birdwatching dense canopy woodlands habitat ecology tranquil fauna leafy lush vertebrates bird species wilderness area observation natural beauty isolation undisturbed subtropical ornithological interest biodiversity hotspot jungle