white tailed sea eagle with crow

accipitridae albicilla animal animals arctic avian behaviour big biggest bird blue cold color colorful colour colourful communicating communication crow eagle edge fauna feather fighting flight flow flowedge fly flying front haliaeetus harras harrasment harrassing hokkaido ice iceflow japan japanese nature ocean oceanic ornithology passerine polar predator prey quarrel quarrelling rausu sea snow songbird squabble squabbling steal stealing tailed two view white whitetailed wild wilderness wildlife winter