goosander vs common merganser
The chicks stay under the mother’s care for about two months. The Male has a larger white wing patch than the Female. Generally, they are wary, and one or more birds stay on sentry duty to warn the flock of approaching danger. The Female Goosander has a blue-grey body, with a chestnut-red head and neck. Still, my sense is that this is enough that an observer who is aware of the differences should notice a bird of the “wrong” subspecies out of range, especially if it is with other mergansers for direct comparison. The goosander is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds applies.  Common Mergansers are known to form crèches, with single females having being observed with over 70 ducklings at one time. Much smaller numbers of males also use estuaries in eastern Scotland as a moulting area. Somerset.  The genus name is a Latin word used by Pliny and other Roman authors to refer to an unspecified waterbird, and merganser is derived from mergus and anser, Latin for "goose". The common merganser eats fish. Another subspecies is found in central Asia. One feature clearly distinguishes the merganser from ducks – a quite differently built bill. The population wintering in Poland is a little larger, although difficult to estimate, as it changes from year to year depending of the weather and the freezing over of individual water reservoirs. During preying the birds are guided by sight, so that is also why it is easier to find them on clean water reservoirs with clear water. Breeding Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Rozmieszczenie, liczebność i zmiany. The bill is long, red and hooked at the tip. Thanks to: https://commons.wikimedia.org/wiki/User:Mdf; Thanks to:https://www.flickr.com/photos/46789814@N05/; Note the extent of the white on this Male Goosander combined with the dark back and head unlike the similar Red-breasted Merganser which has grey flanks and brownish-black breast. The merganser is not a very numerous species in Poland, occurring mainly in the west and northern parts of the country, and its breeding population is estimated at only 900-1,000 pairs. It is the common merganser or goosander. The head is a deeper brown than the female, the mantle is darker, and the beak is redder. https://www.alamy.com/stock-photo-common-blue-butterfly-polyommatus-icarusadult-male-roosting-covered-88445230.html. The nest can be very high, even at some dozen or so metres above ground. It is in the family Nymphalidae. Thanks to:https://www.flickr.com/photos/johndal/. Copyright © 26/11/2020 Alamy Ltd. All rights reserved. It is the female that chooses the place for a nest. On the Causse de Gramat, Lot region, France. Mergansers prey for fish by diving even 10 metres under water to actively search for victims. possibly shorter crest? The bill and legs are red to brownish-red, brightest on adult males, dullest on juveniles. To rise from water, they flap along the surface for many yards. I found no difference in wing pattern of females, and no consistent difference in face pattern. Martin, Your email address will not be published. Common blue butterfly on a Fragrant orchid in the english countryside, https://www.alamy.com/stock-photo-polommatus-icarus-common-blue-butterfly-on-a-fragrant-orchid-in-the-24625116.html. It commonly preys on fish like trout, small salmon, perch, minnows, and eels. The Male Goosander in Summer looks very similar to the Female and can be difficult to separate. The breast, chin and lower neck are white. When floating leisurely, they position themselves in water similar to ducks, but they also swim deep in water like cormorants, especially when swimming upstream. A tree on Woodbury Common Near Exmouth in South East Devon. The common merganser dives for prey like fish, mollusks, and crustaceans. In addition to fish, they take a wide range of other aquatic prey, such as molluscs, crustaceans, worms, insect larvae, and amphibians; more rarely, small mammals and birds may be taken. Therefore, their bill has a sharp ending, and it is also bent at the end in the shape of a hook. Common Blue butterfly (Polyommatus icarus) adult male feeding on Heather (Calluna vulgaris) flowers. Causse de Gramat, Lot region, France. Females, if possible, choose small oxbow lakes for the chicks’ first days, or sections of rives with weaker currents, so that the chicks are not taken by a current that may be too strong. Common Blue Butterfly, Polyommatus icarus, single adult resting on dried grass. Scientific name: Papilio clytia.  They are very scarce in Ireland, with regular breeding confined to a few pairs in County Wicklow.. The males have greenish, black heads, white bodies and black backs in breeding plumage. Your email address will not be published. Common Merganser Images, Facts and Information: Mergus merganser Common Mergansers are long-bodied diving ducks with long, thin reddish serrated bills, orange feet and legs and dark eyes. https://www.alamy.com/stock-image-common-blue-butterfly-polyommatus-icarus-adult-male-feeding-on-heather-165960982.html, Common Mormon mating at Butterfly park Bannerghatta Bangalore Karnataka India Asia, https://www.alamy.com/stock-photo-common-mormon-mating-at-butterfly-park-bannerghatta-bangalore-karnataka-95880985.html. PTPP „pro Natura”, 2003. www.learner.org, International scientific conference “Biodiversity conservation in cities” Warsaw, 16-17 March 2018, The little ringed plover and common ringed plover. Chylarecki P, Sawicki G., Ostoja ptaków Dolina Środkowej Wisły, Wydawnictwo Askon, 2003. Mergansers are medium-sized birds, not much bigger than the mallard duck. Worcestershire, UK. Dear David, Heather and Gorse on Porlock Common looking towards Porlock Bay. Pyle 2008, reported that the crest is broader in Eurasian, vs. limited to a narrower ridge down the nape in American, and I did not check this specifically. Eastern North American birds move south in small groups to the United States wherever ice free conditions exist on lakes and rivers; on the milder Pacific coast, they are permanent residents. Common Blue male nectaring on Tansy.  The female lays 6–17 (most often 8–12) white to yellowish eggs, and raises one brood in a season. The common merganser (North American) or goosander (Eurasian) (Mergus merganser) is a large seaduck of rivers and lakes in forested areas of Europe, the northern and central Palearctic, and North America. However, couples do not mate until spring, around March. In larger streams and rivers, they float down with the stream for a few miles, and either fly back again or more commonly fish their way back, diving incessantly the whole way. Wyd. Heather and bracken at sunrise on Rockford Common in the New Forest. Note the Male and Female Goosander both have a sharply defined white throat with a clean line between brown and white, unlike the Red-breasted Merganser with which it is easily confused. It nests in holes in trees. Can subspecies of Mountain Chickadee be identified in the field? ", "The origins of moulting Goosanders on the Eden Estuary", "Central Park Races to Save a Rare Duck Gagging on a Piece of Plastic", https://en.wikipedia.org/w/index.php?title=Common_merganser&oldid=989714984, Creative Commons Attribution-ShareAlike License, This page was last edited on 20 November 2020, at 16:19. Alamy and its logo are trademarks of Alamy Ltd. and are registered in certain countries.
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