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D.E., Gillings, S., Caffrey, B.J., Swann, R.L., Downie, I.S., Fuller, R.J. (eds.) Bird Atlas 2007–
11: The Breeding and Wintering Birds of Britain and Ireland, pp. 17–31. BTO Books, Thetford
(2013a)
Balmer, D., et al.: Bird Atlas 2007-11: The Breeding and Wintering Birds of Britain and Ireland.
British Trust for Ornithology (2013b)
Chabot, D., Francis, C.M.: Computer-automated bird detection and counts in high-resolution aerial
images: a review. J. Field Ornithol. 87(4), 343–359 (2016)
Delord, K., Roudaut, G., Guinet, C., Barbraud, C., Bertrand, S., Weimerskirch, H.: Kite aerial
photography: a low-cost method for monitoring seabird colonies. Eco. Inform. 86(2), 173–179
(2015)
European Commission: Council Directive 92/43/EEC of 21.5.1992 on the conservation of wild
habitats and of wild fauna and flora. Official Journal of the European Communities: No L 206:
22.7.1992 (1992)
Ferreira, T., Rasband, W.: ImageJ User Guide IJ1.46r. (2012). Available to download at: https://
imagej.nih.gov/ij/docs/guide/user-guide.pdf
Frost, T.M., et al.: Waterbirds in the UK 2014/15: The Wetland Bird Survey. BTO, RSPB and
JNCC, in association with WWT. British Trust for Ornithology, Thetford (2016)
Grahn, J.: Räknar vi rätt? Om de övervintrande gräsänderna i Umeå och rapporter på Svalan. In
Fäglar i Västerbotten, nr 2, 44–45 (2007)
Groom, G., Stjernholm, M., Due Nielsen, R., Fleetwood, A.: Ib Krag Petersen. Remote sensing
image data and automated analysis to describe marine bird distributions and abundances. Ecol.
Inform. 14, 2–8 (2013)
JNCC: Seabird population trends and causes of change: 1986–2014 report (2015)
Merkel, F.R., Johansen, K.L., Kristensen, A.J.: Use of time-lapse photography and digital image
analysis to estimate breeding success of a cliff-nesting seabirds. J. Field Ornithol. 87(1), 84–95
(2016)
Nussbaum, S., Menz, G.: eCognition image analysis. In: Nussbaum, S., Menz, G. (eds.) ObjectBased Image Analysis and Treaty Verification: New Approaches in Remote Sensing. Springer,
Dordrect (2008)
Rowell, T.A.: The relationship between monitoring and management. In: Hurford, C., Schneider,
M. (eds.) Monitoring nature conservation in cultural habitats: A practical guide and case studies. Springer, Dordrecht (2006)
Škorpíková, V.: Velká hejna – velké problémy (Big flocks – big problems). In: Crex – Zpravodaj
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References
Balmer, D.E., Gillings, S., Caffrey, B.J., Swann, R.L., Fuller, R.J.: Setting the scene. In: Balmer,
D.E., Gillings, S., Caffrey, B.J., Swann, R.L., Downie, I.S., Fuller, R.J. (eds.) Bird Atlas 2007–
11: The Breeding and Wintering Birds of Britain and Ireland, pp. 17–31. BTO Books, Thetford
(2013a)
Balmer, D., et al.: Bird Atlas 2007-11: The Breeding and Wintering Birds of Britain and Ireland.
British Trust for Ornithology (2013b)
Chabot, D., Francis, C.M.: Computer-automated bird detection and counts in high-resolution aerial
images: a review. J. Field Ornithol. 87(4), 343–359 (2016)
Delord, K., Roudaut, G., Guinet, C., Barbraud, C., Bertrand, S., Weimerskirch, H.: Kite aerial
photography: a low-cost method for monitoring seabird colonies. Eco. Inform. 86(2), 173–179
(2015)
European Commission: Council Directive 92/43/EEC of 21.5.1992 on the conservation of wild
habitats and of wild fauna and flora. Official Journal of the European Communities: No L 206:
22.7.1992 (1992)
Ferreira, T., Rasband, W.: ImageJ User Guide IJ1.46r. (2012). Available to download at: https://
imagej.nih.gov/ij/docs/guide/user-guide.pdf
Frost, T.M., et al.: Waterbirds in the UK 2014/15: The Wetland Bird Survey. BTO, RSPB and
JNCC, in association with WWT. British Trust for Ornithology, Thetford (2016)
Grahn, J.: Räknar vi rätt? Om de övervintrande gräsänderna i Umeå och rapporter på Svalan. In
Fäglar i Västerbotten, nr 2, 44–45 (2007)
Groom, G., Stjernholm, M., Due Nielsen, R., Fleetwood, A.: Ib Krag Petersen. Remote sensing
image data and automated analysis to describe marine bird distributions and abundances. Ecol.
Inform. 14, 2–8 (2013)
JNCC: Seabird population trends and causes of change: 1986–2014 report (2015)
Merkel, F.R., Johansen, K.L., Kristensen, A.J.: Use of time-lapse photography and digital image
analysis to estimate breeding success of a cliff-nesting seabirds. J. Field Ornithol. 87(1), 84–95
(2016)
Nussbaum, S., Menz, G.: eCognition image analysis. In: Nussbaum, S., Menz, G. (eds.) ObjectBased Image Analysis and Treaty Verification: New Approaches in Remote Sensing. Springer,
Dordrect (2008)
Rowell, T.A.: The relationship between monitoring and management. In: Hurford, C., Schneider,
M. (eds.) Monitoring nature conservation in cultural habitats: A practical guide and case studies. Springer, Dordrecht (2006)
Škorpíková, V.: Velká hejna – velké problémy (Big flocks – big problems). In: Crex – Zpravodaj
Jihomoravské Pobočky ČSO 26 (2006): 152–153 (2006)
C. Hurford