Bald-faced hornet is constructed too close to human habitation. They vigorously defend the nest, with workers stinging repeatedly, as is common among social bees and wasps. However, the baldfaced hornet has a unique defense in that it can squirt or spray venom from the stinger into the eyes of vertebrate nest intruders. The venom causes immediate watering of the eyes and temporary blindness. The life cycle of a colony can be divided into the founding stage, the ergonomic stage and the reproductive stage. Colonies show annual cycling. New nests are generally founded during spring and early summer by a single queen, though
Bare-faced bulbul by quarrying and habitat degradation caused by overgrazing. Bare-faced bulbul The bare-faced bulbul ("Nok hualon") is a member of the bulbul family of passerine birds. It was newly described from central Laos in 2009. It is one of the very few Asian songbirds with a bald (featherless) face and is the first new species of bulbul to be described from Asia in almost a century. The species epithet "hualon" is from the Lao word for "bald-headed". A 2018 molecular phylogenetic study of the bulbuls suggested that the species does not fit in the clade containing the core "Pycnonotus" and stood