Fánzhí qī de xūfú'ōu yǒu yī tiáo míngxiǎn de báisè zī wén.
In breeding plumage, whiskered terns show a distinct white whisker-stripe.
Tips
memory
Name breaks down perfectly: 须 'whisker' + 浮 'floating (over marshes)' + 鸥 'gull/tern' - 'marsh-skimming whiskered tern'. The white cheek below the black cap really does look like a whisker.
