Large, stocky tern; bill orange to coral red, much thicker than Royal Tern. In flight, shows dark underside of primaries; tail is less deeply forked than in Royal. Adult acquires black cap in breeding season; in nonbreeding plumage and immature, crown is dusky or streaked; Caspian Terns nest in small colonies along coasts and inland lakes, rivers, and marshes.
Added On | 15th September 2015 |
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