[
Basle T. (2019): Veliki žagar Mergus merganser. pp. 82–83. In: Mihelič T., Kmecl P., Denac K., Koce U., Vrezec A., Denac D. (eds.): Atlas ptic Slovenije. Popis gnezdilk 2002–2017. – DOPPS, Ljubljana.
]Search in Google Scholar
[
BirdLife International (2018): Mergus merganser. The IUCN Red list of threatened species 2018: e. T22680492A132054083. http://datazone.birdlife.org/home. Assessed on 27.3.2020.
]Search in Google Scholar
[
BirdLife International, Wetlands International (2020): Critical Site Network 2.0. Goosander Mergus merganser. https://criticalsites.wetlands.org/en. Assessed on 26.10.2020.
]Search in Google Scholar
[
BUNARCO (2009): List of the Birds Recorded in Bulgaria. – Acta zoologica bulgarica 61 (1): 3–26.
]Search in Google Scholar
[
Catsadorakis G., Avramovski O., Bojadzi A., Nikolau H. (2016): The status of an isolated population of Goosander Mergus merganser in the Balkans. – Wildfowl 66: 159–175.
]Search in Google Scholar
[
Handrinos G., Akriotis T. (1997): The Birds of Greece. – Christopher Helm, London, UK.
]Search in Google Scholar
[
Hagemeijer J., Blair M. (1997): The EBCC Atlas of European breeding birds: their distribution and abundance. – T & AD Poyser, London.
]Search in Google Scholar
[
Kajtoch Ł., Bobrek R. (2014): Extension of Goosander Mergus merganser distribution into the Carpathian Mountain range. – Wildfowl 64: 91–101.
]Search in Google Scholar
[
Keller V. (2009): The Goosander Mergus merganser population breeding in the Alps and its connections to the rest of Europe. – Wildfowl 2: 60–73.
]Search in Google Scholar
[
Kostadinova I., Gramatikov M. (2007): Important bird areas in Bulgaria and Natura 2000. – Bulgarian society for the protection if birds, Conservation series, book 11, BSPB, Sofia.
]Search in Google Scholar
[
Little B., Furness R.W. (1985): Long distance moult migration by British Goosanders Mergus merganser. – Ringing & Migration 6: 77–82.10.1080/03078698.1985.9673860
]Search in Google Scholar
[
Marinkovic S., Skoric S., Popovic Z., Nikcevic M. (2008): Research on longterm colonization of Goosander Mergus merganser Linnaeus, 1758 with reference to habitat availability. – Archives of Biological Science Belgrade 60: 501–506.10.2298/ABS0803501M
]Search in Google Scholar
[
Marti C. & Lammi E. (1997): The goosander Mergus merganser. pp. 126 – 127 In: Hagemeijer W. J. M., Blair M. J. (eds): The EBCC Atlas of European Breeding Birds - their distribution and abundance. – T & AD Poyser, London.
]Search in Google Scholar
[
Nankinov D., Simeonov S., Michev T., Ivanov B. (1997): Fauna Bulgarica, Aves II, vol.26, Sofia. (in Bulgarian)
]Search in Google Scholar
[
Popgeorgiev G., Spasov S., Korniliev Y. (2015): SmartBirds – Information system with biological information, BSPB. – http://www.smartbirds.org Assessed on 25.3.2020.
]Search in Google Scholar
[
Scott D.A., Rose P.M. (1996): Atlas of Anatidae Populations in Africa and Western Eurasia. Wetlands International Publication No. 41, Wetlands International, Wageningen, The Netherlands.
]Search in Google Scholar
[
Shurulinkov P., Daskalova G., Kirov D., Borisov B., Spasov L., Ralev A., Stoev I. Mechev A. (2018): Avifauna of ‘bulgarka’ nature park (Bulgaria) with distribution, population size and breeding density data for the species of conservation importance. – Forestry Ideas 24, 1,55: 3–22.
]Search in Google Scholar
[
Voos K. (1960): Atlas of European Birds. – Edinburgh, Nelson.
]Search in Google Scholar
[
Wetlands International (2018): Waterbird Population Estimates. – http://wpe.wetlands.org Assessed on 27.03.2020.
]Search in Google Scholar
