Habitat Small, forested, freshwater wetlands with emergent vegetation are the preferred breeding habitat of the Hooded Merganser. Genus: Mergus The Hooded is the smallest of our three native merganser species, and often seems to be the least numerous, as it tends to live around swamps and wooded ponds where it may be overlooked. Adult males seem to winter farther north than females and juvenile birds. The elegant gray-bodied females have rich, cinnamon heads with a short crest. The juvenile looks like the female, as does the male in non-breeding plumage, although his crest is browner. Industrial waste from milling industry has also been shown to bioaccumulate PCBS, dioxins and furans in Common Merganser eggs and livers (Champoux, 1996). In our local area, Puget Sound and surrounding wetland regions have been identified to be at high risk for mercury contamination and bioaccumulation in avian piscivores (Jackson et al., 2016). Reset it, Applied Physiology, Nutrition, and Metabolism. Food-seeking behavior of South Swedish diving ducks in the non-breeding season. While there is no definitive conclusion on the interaction between fluoride and avian physiology from this study, it is worth keeping it in mind as a possible player in toxicological issues and further study is warranted (Kalinska 2014). Check if you access through your login credentials or your institution to get full access on this article. Canadian Journal of Fisheries and Aquatic Sciences. These widgets are displayed because you haven't added any widgets of your own yet. There are a myriad of anthropogenic contaminants interacting with Common Mergansers. merganser of Europe and Northern Asia and M.m. http://blogs.evergreen.edu/birds/files/2019/03/XC419829-Common-Merganser-Mergus-merganser.mp3. Battisti, C., Staffieri, E., Poeta, G., Sorace, A., Luiselli, L., & Amori, G. (2019). Share to Twitter Share to Facebook Share to Pinterest. Little is known about juvenile dispersal of waterfowl under 2 years due to the difficulties in tracking, especially the high mortality rate of juveniles. The migration of the Common Merganser takes place late in the fall and early in the spring. I initially thought they were red-breasted mergansers, but, after viewing the pictures on my computer and searching field books, I concluded that they could either be juvenile red-breasted mergansers, or juvenile common mergansers. Washington Department of Fish and Wildlife, Olympia, Washington. Ecological Indicators, 45, 83-92. https://doi.org/10.1016/j.ecolind.2014.03.021, Marchowski, D., Jankowiak, Ł., Wysocki, D., Ławicki, Ł., & Girjatowicz, J. The first formal description of the common merganser was by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae.He introduced the current binomial name Mergus merganser. However, some adults have been tracked with migratory distances of up to 2000 km (Pearce & Petersen, 2009). Fluoride concentrations in the pineal gland, brain and bone of goosander (Mergus merganser) and its prey in Odra River estuary in Poland. 2014). A General Fishery Model for a Size-Structured Fish Population, Predation of Juvenile Pacific Salmon by the Common Merganser (, Predation of juvenile salmonids by the common merganser (, L'auteur a étudié la prédation des salmonidés juvéniles par le grand bec-scie (, Copyright © 2020 Canadian Science Publishing, Forgot password? 2015). https://wdfw.wa.gov/publications/00063/, Champoux, L. (1996). The Common Merganser (Mergus merganser) ... Dispersal of juvenile males and a more limited female migration pattern may also play a role. Common Merganser. Quartl [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]. Field observations in the local Olympia area during February-March 2019 indicate a preference for river mouths, with sightings of breeding pairs at the Nisqually River mouth before the estuary and the Deschutes river mouth upstream from Capitol Lake. Common Mergansers are streamlined ducks that float gracefully down small rivers or shallow shorelines. Environmental Pollution, 92(2), 147-153. https://doi.org/10.1016/0269-7491(95)00103-4, Jackson, A., Evers, D.C., Eagles-Smith, C.A., Ackerman, J.T., Willacker, J.J., Elliot, J.E….Bryan, C.E. Juvenile Common Mergansers at July 09, 2015. Interactions between anthropogenic litter and birds: a global review with a ‘black-list’ of species. Changes in ice cover due to climate change was studied in the Odra River Estuary of Poland and showed that piscivores, including Goosanders, may be shortening their migration distances in response to the increasing availability of open water (Marchowski, Jankowiak, Wysocki, Ławicki, & Girjatowicz, 2017). Email This BlogThis! Females and non-breeding males have a gray body, cinnamon-brown head with a shaggy, mullet-like crest, white chin, and a cleanly delineated white lower chest. Conservation Status. Deep Sea Research Part II: Topical Studies in Oceanography, 147, 138-147. https://doi.org/10.1016/j.dsr2.2017.07.017, Wood, C. (1984). Common Mergansers prefer high quality, freshwater and protected saltwater, riparian forest habitats and one study has shown the potential for them to be considered an indicator species for naturalness and biodiversity (Kajtoch, Żmihorski, & Piestrzyńska-Kajtoch, 2014). Download preview. © 2020 Birds of Evergreen | The Evergreen State College, https://doi.org/10.1016/j.marpolbul.2018.11.017, https://doi.org/10.1016/0269-7491(95)00103-4, https://doi.org/10.1016/j.scitotenv.2016.02.197, https://doi.org/10.1007/s10653-014-9615-6, https://doi.org/10.1007/s10452-017-9630-7, https://doi.org/10.1016/j.ecolind.2014.03.021, https://doi-org.evergreen.idm.oclc.org/10.2173/bna.442, https://doi.org/10.1016/j.dsr2.2017.07.017. Lastly, Common and Red-breasted Mergansers show reddish bills at all ages. Juvenile, silhouette. Marine Pollution Bulletin, 138, 93-114. https://doi.org/10.1016/j.marpolbul.2018.11.017, Cederholm, C., Johnson, D., Bilby, R., Dominguez, L., Garrett, A., Graeber, W….Trotter, P. (2000). Common Mergansers are fairly quiet, typically calling only when alarmed or breeding (Pearce et al., 2015). (2014). (2018). Further research is needed especially surrounding breeding biology, nesting, and fledgling activity (Pierce, et al. Non-breeding distributions were shown to be affected by migration, molt, prey availability, and weather conditions (Stocking, Bishop, & Arab, 2018). For example, cavity-nesting is a major influence in distribution patterns occurring up to the boreal tree-line as compared to the ground-nesting Red-breasted Merganser, which has a more northern range (Pearce, McCracken, Christensen, & Zhuravlev, 2009). No comments: Post a Comment. In winter they move to lakes, gravel pits and reservoirs, occasionally to sheltered estuaries. Science of the Total Environment, 568, 685-696. https://doi.org/10.1016/j.scitotenv.2016.02.197, Kalinska, E., Bosiacka-Baranowska, I., Lanocha, N., Kosik-Bogacka, D., Krozlaczyk, K., Wilk, A….Chlubek, D. (2014). In a recent global review of anthropogenic litter, Common Mergansers were listed for entanglement in litter and for being most susceptible to micro-litter pressures (Battisti et al., 2019). Subsequently, they moved widely throughout portions of western and southcentral Alaska up to 750 km from their natal areas during fall and winter months. Migratory patterns and population structure among breeding and wintering Red-breasted Mergansers (Mergus serrator) and Common Merganser (M. merganser).