Common Tern
Sterna hirundo
Family: Gulls, terns, and skimmers
Common Tern is one of the species in the BirdGuess catalog. The daily puzzle hides a photo and opens it in pieces. You get five guesses.
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Like most terns, this species feeds by plunge-diving for fish, either in the sea or in freshwater, but molluscs, crustaceans and other invertebrate prey may form a significant part of the diet in some areas.
The young birds may receive supplementary feeds from the parents until the end of the breeding season, and beyond.
Egg size averages 41 mm × 31 mm, although each successive egg in a clutch is slightly smaller than the first laid.