Griza cirkuo (Esperanto Wikipedia)

Analysis of information sources in references of the Wikipedia article "Griza cirkuo" in Esperanto language version.

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5web.archive.org

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2grauwekiekendief.nl

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1irishbirding.com

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1blackwell-synergy.com

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blackwell-synergy.com

Beatriz Arroyo, Jesús T. García kaj Vincent Bretagnolle (2002) Conservation of the Montagu's harrier (Circus pygargus) in agricultural areas. Animal Conservation Vol. 5 Issue 4 Page 283 November 2002. Arkivita el la originalo je 2019-09-18. Alirita 2011-08-29 .

busards.com

Salamolard M., Butet A., Leroux A., Bretagnolle V. (2000) Responses of an avian predator to variations in prey density at a temperate latitude. Ecology (Ecology) ISSN 0012-9658 resumo: [1]

grauwekiekendief.nl

Montagu's harrier migration at grauwekiekendief.nl. Arkivita el la originalo je 2007-09-29. Alirita 2011-08-29 .
Nest protection put into practice at grauwekiekendief.nl. Arkivita el la originalo je 2007-09-29. Alirita 2011-08-29 .

holkham.co.uk

Holkham Newsletter No. 11, winter/spring 2006. Arkivita el la originalo je 2011-09-27. Alirita 2011-08-29 .

inist.fr

cat.inist.fr

irishbirding.com

Irish Birding

og-bayern.de

Belting, C. & R. M. Krüger: Population development and strategies for the protection of Montagu´s Harrier in Bavaria (Populationsentwicklung und Schutzstrategien für die Wiesenweihe Circus pygargus in Bayern).. Arkivita el la originalo je 2007-09-28. Alirita 2011-08-29 .

web.archive.org

Montagu's harrier migration at grauwekiekendief.nl. Arkivita el la originalo je 2007-09-29. Alirita 2011-08-29 .
Holkham Newsletter No. 11, winter/spring 2006. Arkivita el la originalo je 2011-09-27. Alirita 2011-08-29 .
Belting, C. & R. M. Krüger: Population development and strategies for the protection of Montagu´s Harrier in Bavaria (Populationsentwicklung und Schutzstrategien für die Wiesenweihe Circus pygargus in Bayern).. Arkivita el la originalo je 2007-09-28. Alirita 2011-08-29 .
Nest protection put into practice at grauwekiekendief.nl. Arkivita el la originalo je 2007-09-29. Alirita 2011-08-29 .
Beatriz Arroyo, Jesús T. García kaj Vincent Bretagnolle (2002) Conservation of the Montagu's harrier (Circus pygargus) in agricultural areas. Animal Conservation Vol. 5 Issue 4 Page 283 November 2002. Arkivita el la originalo je 2019-09-18. Alirita 2011-08-29 .