Kamchia
... that the Kamchia biosphere reserve in Bulgaria is a major migratory bottleneck site where at least 60,000 White Storks pass overhead each autumn?
... that the <b id="mwCVo"><a href="./Kamchia_(biosphere_reserve)" id="mwCVs" rel="mw:WikiLink" title="Kamchia (biosphere reserve)">Kamchia</a></b> <a class="mw-redirect" href="./Biosphere_reserve" id="mwCVw" rel="mw:WikiLink" title="Biosphere reserve">biosphere reserve</a> in <a href="./Bulgaria" id="mwCV0" rel="mw:WikiLink" title="Bulgaria">Bulgaria</a> is a major <a href="./Bird_migration" id="mwCV4" rel="mw:WikiLink" title="Bird migration">migratory</a> bottleneck site where at least 60,000 <a class="mw-redirect" href="./White_Stork" id="mwCV8" rel="mw:WikiLink" title="White Stork">White Storks</a> pass overhead each autumn?