An official website of the United States government
Here’s how you know
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.
Google Analytics Dashboard for Eggshell thinning and contaminant levels in bald eagle eggs from Arizona, 1977 to 1985
Eggshell thinning and contaminant levels in bald eagle eggs from Arizona, 1977 to 1985