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Reference.org
Spectacled tern
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<p>The spectacled tern (<i>Onychoprion lunatus</i>), also known as the grey-backed tern, is a <a href="/facts/Seabird/zmMQPeEU">seabird</a> in the <a href="/facts/Family_(biology)/qTrn6E8E">family</a> <a href="/facts/Laridae/qgQUESKr">Laridae</a>. </p>