The Coal Tit is a small passerine bird with plain plumage, predominantly gray and brown, and a distinctive glossy black cap on its head. The species is known for its lively behavior and varied diet, which includes insects, seeds, and berries. It is a sedentary species that rarely migrates. Its vocalizations are distinctive and include a sweet, repetitive call. It prefers wooded habitats, particularly deciduous and mixed forests. The breeding season extends from spring to early summer, with nesting generally taking place in tree cavities. Fun fact: despite the name “palustris,” which suggests a connection to marshes, the species is not strictly tied to such environments.