Figure 2.
Sampling locations of towhee populations along the Teziutlán hybrid gradient in the Sierra Madre Oriental. Numbered locations are detailed in Table 1.
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.