The family Certhiidae, commonly known as treecreepers, consists of small, slender birds found primarily in forests across the Northern Hemisphere. They are characterized by their long, pointed bills and stiff tail feathers, which help them climb tree trunks in search of insects and larvae hidden in the bark. Treecreepers have a unique foraging behavior, often moving in a spiral pattern up trees. They are well-camouflaged with their brown and white plumage, allowing them to blend into their surroundings. The most recognized species within this family is the Eurasian treecreeper (Certhia familiaris), which is widespread in Europe and Asia.