Wildlifeof Bhutan
Common Tern
Gulls, Terns & Skuas
Photo: Bill Keim · CC BY 4.0 (May be cropped or resized)
Sterna hirundo
Basic stats
Clutch size
Up to 3 eggs
Incubation period
About 21–22 days
Weight
110–141g
The common tern lays up to three eggs, their dull colours and blotchy patterns providing camouflage on an open beach. Both sexes incubate, and the eggs hatch in around 21 to 22 days, longer if the colony is disturbed by predators. The downy chicks fledge in 22 to 28 days. The bird weighs 110 to 141g (Wikipedia, general species account).
The only source read for the Bhutan guide gives these breeding details and the weight. No plumage, range, habitat or diet information was found, so none is stated. Its occurrence in Bhutan is flagged for checking.
Quick answers
- How many eggs does the Common Tern lay?
- Up to 3 eggs
- How long are the eggs of the Common Tern incubated?
- About 21–22 days
- How much does the Common Tern weigh?
- 110–141g