black-bellied tern
... that the black-bellied tern , an endangered species, breeds by rivers and is threatened by human activities?
... that the <b id="mwAvI"><a href="./Black-bellied_tern" id="mwAvM" rel="mw:WikiLink" title="Black-bellied tern">black-bellied tern</a></b> <i id="mwAvQ">(pictured)</i>, an <a href="./Endangered_species" id="mwAvU" rel="mw:WikiLink" title="Endangered species">endangered species</a>, breeds by rivers and is threatened by human activities?