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.
Average trill consistency across song types for nine individuals (banded wrens) for the first, second and/or third breeding seasons. The lines connect the same individual at different age classes. Each individual is represented by a different symbol.
