A North American nuthatch, Sitta carolinensis, which has a white face and underparts, black cap, and blue-grey back.
Early 19th century; earliest use found in Alexander Wilson (1766–1813), ornithologist and poet.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。