Sentinel warning calls seem to be universally understood by birds – Earth.com Sentinel warning calls in birds may be universally understood, transcending continental boundaries, according to a new study. Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppLike this:Like Loading... Related Tags: BirdNews December 2, 2023 by Pumilo Bird News 0