adult male common pochard dive duck

adult aggregations aithuia alarm animal aristotle asian authors aythya bird birds breeding calls characteristic charadriidae colloquial common derived did dive diving duck family ferina ferus form game greek ground groups hesychius human incapable indicators indicus lake lapwings latin leading loud male mediumsized mentioned movements name non pair pairs perching plover pochard redwattled rendered scientific seabird season shore small sounds unidentified vanellus variously wader water wild winter