To renew your membership, first be sure you are logged in. If you're not yet logged in, you'll see a box below for that purpose.
Next, click "View profile" in the teal box at the bottom left of this screen. Then, click the box that says "Renew" in the top "Membership details" section of your profile page.
Questions? Just give us a call at 415-751-2401 or email membership@owlsite.org.