a mute swan attacks two geese

aggression ambush animal aquatic attack avian bird birdwatching blitz blue branta brown cackling canada canadensis canadian center channahon charge county crane cygnus duck dupage education egret environmental fauna flight float fly flying four fowl freedom geese glide goose heron honker illinois lake lakeside midair mute olor onslaught ornithology pond poultry pounce river rivers soar soaring songbird stork strike swan tan water waterbird waterfowl white wildlife will yellow