References
- Aksnes, D.W., Langfeldt, L. & Wouters, P. 2019. Citations, citation indicators, and research quality: an overview of basic concepts and theories. SAGE Open 9: 1–17.
- Amano, T., González-Varo, J.P. & Sutherland, W.J. 2016. Languages are still a major barrier to global science. PLoS Biol. 14: e2000933.
- Ball-Damerow, J.E., Brenskelle, L., Barve, N., Soltis, P.S., Sierwald, P., Bieler, R., LaFrance, R., Ariño, A.H. & Guralnick, R.P. 2019. Research applications of primary biodiversity databases in the digital age. PLoS One 14(9): e0215794.
- Balmer, D.E., Gillings, S., Caffrey, B.J., Swann, R.L., Downie, I.S., & Fuller, R. 2013. Bird Atlas 2007–11: The Breeding and Wintering Birds of Britain and Ireland. British Trust for Ornithology, Thetford.
- Barnard, P., Altwegg, R., Ebrahim, I. & Underhill, L.G. 2017. Early warning systems for biodiversity in Southern Africa – how much can citizen science mitigate imperfect data? Biol. Conserv. 208: 183–188.
- Barrett, G., Silcocks, A., Barry, S., Cunningham, R., & Poulter, R. 2003. The New Atlas of Australian Birds. Birds Australia, Melbourne.
- Bayraktarov, E., Ehmke, G., O’Connor, J., Burns, E.L., Nguyen, H.A., McRae, L., Possingham, H.P. & Lindenmayer, D.B. 2019. Do big unstructured biodiversity data mean more knowledge? Front. Ecol. Evol. 6: 239.
- Beck, G.G., Couturier, A.R., Francis, C.M. & Leckie, S. 2018. North American Ornithological Atlas Committee Handbook: A Guide for Managers on the Planning and Implementation of a Breeding Bird Atlas Project. Bird Studies Canada, Port Rowan.
- Bekhuis, J., Bijlsma, R., & van Dijk, A. 1987. Atlas van de Nederlandse Vogels. SOVON, Arnhem.
- Blakers, M., Davies, S.J.J.F., & Reilly, P.N. 1984. The Atlas of Australian Birds. Melbourne University Press, Melbourne.
- Cadman, M.D., Eagles, P.F.J. & Helleiner, F.M. 1987. Atlas of the Breeding Birds of Ontario. University of Waterloo Press, Waterloo.
- Cadman, M.D., Sutherland, D., Beck, G.G., Lepage, D. & Couturier, A.R. 2007. Atlas of the Breeding Birds of Ontario, 2001-2005. Ontario Breeding Bird Atlas, Ontario.
- Calver, M.C., Goldman, B., Hutchings, P.A. & Kingsford, R.T. 2017. Why discrepancies in searching the conservation biology literature matter. Biol. Conserv. 213: 19–26.
- Castro-Prieto, J., Wunderle, J., Salguero, J., Soto-Bayó, S., Crespo-Zapata, J., & Gould, W. 2020. The Puerto Rico Breeding Bird Atlas. Gen. Tech. Rep. IITF-GTR-51. Department of Agriculture, Forest Service, and International Institute of Tropical Forestry, San Juan.
- Cooper, R.M., McAllan, I., Brandis, C., & Curtis, B.R. 2020. An Atlas of Birds of New South Wales and the Australian Capital Territory. New South Wales Bird Atlassers Inc., New South Wales.
- Donald, P.F. & Fuller, R.J. 1998. Ornithological atlas data: a review of uses and limitations. Bird Study 45: 129–145.
- Dunn, A.M. & Weston, M.A. 2008. A review of terrestrial bird atlases of the world and their application. Emu - Austral Ornithology 108: 42–67.
- Fraissinet, M. 2011. An overview of ornithological atlases in Italy. Bird Census News 24: 42–66.
- Gibbons, D.W., Donald, P.F., Bauer, H.G., Fornasari, L. & Dawson, I.K. 2007. Mapping avian distributions: the evolution of bird atlases. Bird Study 54: 324–334.
- Haddaway, N.R. & Bayliss, H.R. 2015. Shades of grey: two forms of grey literature important for reviews in conservation. Biol. Conserv. 191: 827–829.
- Haddaway, N.R., Collins, A.M., Coughlin, D. & Kirk, S. 2015. The role of google scholar in evidence reviews and its applicability to grey literature searching. PLoS One 10: e0138237.
- Hagemeijer, E.J.M. & Blair, M.J. 1997. The EBCC Atlas of European Breeding Birds: Their Distribution and Abundance. T. and A.D. Poyser, London.
- Harrison, J.A. 1993. The southern African bird atlas project and its relevance to nature conservation. Thesis, University of Stellenbosch.
- Harrison, J.A., Allan, D.G., Underhill, L.G., Herremans, M., Tree, A.J., Parker, V., & Brown, C.J. 1997. The Atlas of Southern African Birds. Birdlife South Africa, Johannesburg.
- Harzing, A.-W. & Alakangas, S. 2016. Google Scholar, Scopus and the web of science: a longitudinal and cross-disciplinary comparison. Scientometrics 106: 787–804.
- Herrando, S., Keller, V., Bauer, H.-G., Brotons, L., Eaton, M., Kalyakin, M., Voltzit, O., Lehikoinen, A., Milanesi, P., Noble, D., Ramírez, I., Voříšek, P. & Foppen, R. 2019. Using the first European Breeding Bird Atlas for science and perspectives for the new Atlas. Bird Study 66: 149–158.
- Isaac, N.J.B., van Strien, A.J., August, T.A., de Zeeuw, M.P. & Roy, D.B. 2014. Statistics for citizen science: extracting signals of change from noisy ecological data. Methods Ecol. Evol 5: 1052–1060.
- Issa, N. & Muller, Y. 2015. Atlas des oiseaux de France métropolitaine: Nidification et présence hivernale. Delachaux et Niestlé, Paris.
- Keller, V., Herrando, S., Voříšek, P., Franch, M., Kipson, M., Milanesi, P., Martí, D., Anton, M., Klvaňová, A., Kalyakin, M.V., Bauer, H.G. & Foppen, R. 2020. European Breeding Bird Atlas 2: Distribution, Abundance and Change. European Bird Census Council and Lynx Edicions, Barcelona.
- Klimkiewicz, M.K. & Solem, J.K. 1978. The breeding bird atlas of Montgomery and Howard Counties, Maryland. Maryl. Birdlife 34: 3–39.
- Knight, A.T., Cowling, R.M., Rouget, M., Balmford, A., Lombard, A.T. & Campbell, B.M. 2008. Knowing but not doing: selecting priority conservation areas and the research–implementation gap. Conserv. Biol. 22: 610–617.
- Lee, A.T.K. & Nel, H. 2020. Birdlasser: the influence of a mobile app on a citizen science project. Afr. Zool. 55: 155–160.
- Lowrie, K., Lowrie, D. & Collier, D. 2012. Seabird Breeding Atlas of the Lesser Antilles. Environmental Protection in the Caribbean, Maho.
- Maffei, G., Pulcher, C., Rolando, A., & Carisio, L. 2001. L’avifauna della citta di Torino: analisi ecologica e faunistica. Museo Regionale di Science Naturali, Torino.
- Martín-Martín, A., Orduna-Malea, E., Thelwall, M. & Delgado López-Cózar, E. 2018. Google Scholar, Web of Science, and Scopus: a systematic comparison of citations in 252 subject categories. J. Informetr. 12: 1160–1177.
- Matos, M. & Luís, A. 2007. Atlas das Aves Nidificantes do Campus da Universidade de Aveiro. Edições Afrontamento and Universidade de Aveiro, Porto.
- Medrano, F., Barros, R., Norambuena, H.V., Matus, R., Schmitt F. 2018. Atlas de las aves nidificantes de Chile. Red de Observadores de Aves and Vida Silvestre de Chile, Santiago.
- Meijaard, E. & Sheil, D. 2007. Is wildlife research useful for wildlife conservation in the tropics? A review for Borneo with global implications. Biodivers. Conserv. 16: 3053–3065.
- Praveen, J. & Nameer, P.O. 2021. An Atlas of the Birds of Kerala. Kerala Agricultural University and Bird Count India, Kerala.
- Price, J., Droege, S. & Price, A. 2002. The Summer Atlas of North American Birds. Academic Press, Cambridge.
- Purves, L. 2020. Calling all Ontario Birders! Registration for Ontario Breeding Bird Atlas-3 is open. [Accessed 2021 May 10]. https://www.birdscanada.org/calling-all-ontario-birders-registration-for-ontario-breeding-bird-atlas-3-is-open/.
- R Core Team. 2021. R: A language and environment for statistical computing. https://www.r-project.org/.
- Shanley, P. & López, C. 2009. Out of the loop: why research rarely reaches policy makers and the public and what can be done. Biotropica 41: 535–544.
- Southern African Bird Atlas Project 2. 2021. Southern African Bird Atlas Project 2. [accessed 2021 Mar 1]. https://sabap2.birdmap.africa/.
- Stewart, R.E. 1975. Breeding Birds of North Dakota. Tri-College Center for Environmental Studies, Fargo.
- Sullivan, B.L., Phillips, T., Dayer, A.A., Wood, C.L., Farnsworth, A., Iliff, M.J., Davies, I.J., Wiggins, A., Fink, D., Hochachka, W.M., Rodewalk, A.D., Rosenberg, K.V., Bonney, R. & Kelling, S. 2017. Using open access observational data for conservation action: a case study for birds. Biol. Conserv 208: 5–14
- Sullivan, B.L., Wood, C.L., Iliff, M.J., Bonney, R.E., Fink, D. & Kelling, S. 2009. Ebird: a citizen-based bird observation network in the biological sciences. Biol. Conserv. 142: 2282–2292.
- Tende, T., Ivande, S. & Ottoson, U. 2016. Nigeria Bird Atlas Project: how far so far? Progress report August 2016. Biodiversity Observations 7: 1–3.
- Tulloch, A.I.T., Possingham, H.P., Joseph, L.N., Szabo, J. & Martin, T.G. 2013. Realising the full potential of citizen science monitoring programs. Biol. Conserv. 165: 128–138.
- Waltman, L. 2016. A review of the literature on citation impact indicators. J. Informetr. 10: 365–391.
- Wickham, H. 2016. ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag, New York.
- Wright, D.R., Underhill, L.G., Keene, M. & Knight, A.T. 2015. Understanding the motivations and satisfactions of volunteers to improve the effectiveness of citizen science programs. Soc. Nat. Resour. 28: 1013–1029.