Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The serrations of all 7 investigated owl species are presented for 4 different measurement positions. Note the variation in shape between the different species and between the different positions within one species. The black bars represent 1 mm.
