Here's an iray render of Little Grebes, an Eurasian Coot and a couple Greylag Geese. The Little Grebe is found found throughout most of Europe, much of Southern Asia down to New Guinea, and most of Africa. The Iris is red-brown in Europe and red-brown or yellow in East Asia. Predominantly, they feed on adult and larval insects, especially mayflies, stoneflies, water bugs, beetles, flies, caddisflies and dragon flies, as well as freshwater snails, crustaceans, adult and juvenile frogs and newts and occasionally small fish. The Eurasian Coot is found in Eurasia and Africa with most populations in warm and temperate regions being resident, often making nomadic dispersive movements according to changing water levels and seasonal rainfall. Populations in northern Eurasia are fully migratory however, migrating on a broad front through continental Europe and across the Sahara. They have an omnivorous diet consisting of vegetable matter, such as algae, the vegetative parts of aquatic and terrestrial plants (e.g. waterweeds, bulrushes, reeds and grasses), the seeds of waterweeds, sedges, water-lilies, grasses and cereal crops, club moss Selaginella and aquatic fungi. Animal matter in its diet includes mollusks, adult and larval insects (especially flies, caddisflies, Odonata, Lepidoptera, beetles and bugs), worms, leeches, shrimps, spiders, small fish, fish eggs, frogs, birds and bird eggs, and small mammals. Coots can be very brutal to their own young under pressure such as the lack of food. They will bite young that are begging for food and repeatedly do this until it stops begging and starves to death. If the begging continues, they may bite so hard that the chick is killed. Coots are noisy birds with a wide repertoire of crackling, explosive, or trumpeting calls, often given at night. The saying “Old Coot” and “Bald as a Coot” (circa 1400 AD) refers to the white patch on the beak and forehead of the coot. The Greylag Goose is found throughout Eurasia, apparently breeding where suitable localities are to be found in many European countries (although it no longer breeds in southwestern Europe). Eastwards, it extends across Asia to China. Their diets consists of grass, the roots, shoots, leaves, stems, seed heads and fruits of other herbaceous marsh vegetation, aquatic plants, and agricultural grain and potatoes. The species is highly gregarious. It was in pre-Linnean times known as the wild goose ("Anser ferus"). This species is the ancestor of domesticated geese in Europe and North America. Flocks of feral birds derived from domesticated birds are widespread. The greylag is the largest and bulkiest of the grey geese of the genus Anser. Rendered in DAZ Studio Iray without any postwork. Models include Stonemason's "Fern Lake" and my "Songbird ReMix Waterfiowl v4: Geese, Loons, Grebes & Coots"