Ravens mascots Rise and Conquer sheltering from bird flu, Maryland Zoo says – CBS News Avian flu is commonly spread by wild birds through their saliva, mucous and feces, according to the Centers for Disease Control and Prevention. Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppLike this:Like Loading... Related Tags: BirdNews December 2, 2022 by Pumilo Bird News 0