Figure 4.
Naked neck birds. (a) Young heterozygous naked neck chick with a small tuft of fathers on the neck. (b) Adult heterozygous naked neck animal with a small tuft of fathers on the neck.
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.