Common Tern Common Tern Sterna hirundo, Jiangsu, China, August. (Craig Brelsford) Cape Nanhui, Shanghai, September. Massive overexposure of legs (inset) reveals red color and nails ID of Common. (Komatsu Yasuhiko) Go to Birds of China page Be notified every time we post. Send an email with “Subscribe” as the subject to info@shanghaibirding.com Donate to Shanghai Birding! Choose your level (USD)Well-wisher—$10Buddy—$5Friend—$25Supporter—$50Donor—$100Sponsor—$500Champion—$1000