Great blue heron (Ardea herodias) and common merganser (Mergus merganser) female standing on a rock, La Mauricie National Park. Province of Quebec. Canada

ardea herodias mergus merganser rock stone freshwater lake summer adult alone lying in wait profile shot overview ardea biodiversity pair great blue heron ardea herodias mergus goosander mergus merganser national park female duck august la mauricie national park water surface copy space nobody several species rocks stone freshwater lakes fresh water lake fresh water lakes adults single lonely only solo one lone watchful be on the watch stalking being on the watch stalk at steal profile sights profile sight profile shots profile view profile views side view overviews global sight global sights full length biodiversities biological diversity biological diversities duet pairs duets 2 two great blue herons ardea herodias goosanders mergus merganser national parks sensitive natural areas female ducks least concern species water surfaces watersurface watersurfaces with nobody different species rock fragment mineral matter matter substance freshwater wetland area area temperate season seasons ambiance stage of development individual enumeration hunt behavior shot ardeinae ardeidae ciconiiformes aves sauropsida tetrapoda tetrapodomorpha rhipidistia sarcopterygii euteleostomi gnathostomata vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota environment heron surfbird bird sauropsid vertebrate chordate wild animal animal anatinae anatidae anseriformes merganser fish eating duck wild duck palmiped environment protection environment management biodiversity management female species mauricie quebec province of canada north america america water matter)