Some surnames, like Bird, dating from 1193 onwards, with variants like Byrd and Bride, are most likely nicknames for a birdlike person, though they may also be metonyms for a birdcatcher; but Birdwood is toponymic, for a person who lived by a wood full of birds.[22] Eagle from 1230 is a nickname from the bird,[23] while Weasel, Wessel from 1193 and Stagg from 1198 are certainly nicknames from those animals.[24] It is not always easy to tell whether a nickname was friendly, humorous or negative, but the surname Stallion, with variants Stallan, Stallen and Stallon, (1202 onwards) is certainly pejorative, meaning "a begetter, a man of lascivious life".[25]