The Family Sittidae comprises of birds that are more commonly known as nuthatches. These birds are small and agile and have a unique way of descending trees headfirst. While there are no exact synonyms for the term Sittidae, there are a few words that can be used in relation to these fascinating birds. For example, one might use the word tree-climbing birds, as nuthatches are known for their ability to scale trees with ease. Alternatively, the term woodland birds could be used, which encompasses the nuthatch's preferred habitat. No matter the synonym used, the Sittidae family of birds is an interesting and valuable addition to any ecosystem.