white-necklaced partridge
... that the white-necklaced partridge's forehead is white in one subspecies and chestnut in the other?
... that the <b id="mwAUw"><a href="./White-necklaced_partridge" id="mwAU0" rel="mw:WikiLink" title="White-necklaced partridge">white-necklaced partridge</a></b><span about="#mwt30" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwAU4" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> forehead is white in one subspecies and chestnut in the other?