[Arroyo BE 1995: Breeding ecology and nest dispersion of Montagu's harrier Circus pygargus in central Spain. Ph. D Thesis. University of Oxford.]Search in Google Scholar
[Arroyo B, García JT & Bretagnolle V 2002: Conservation of the Montagu's harrier (Circus pygargus) in agricultural areas. Animal Conservation 5: 283-290.10.1017/S1367943002004031]Search in Google Scholar
[Arroyo B, García JT & Bretagnolle V 2004: The Montagu's harrier. BWP Update 6: 39-54.]Search in Google Scholar
[Aureau I, Leroux A, Mabiala CE, Nadal R, Nicolai C, Pacteau C & Rousseau E 2008: Le cahier technique busards. LPO Misson Repaces & Fondation Nature et Découvertes, 20.]Search in Google Scholar
[Cenian Z 2009: Państwowy Monitoring Ptaków Drapieżnych - metodyka oceny liczebności i rozpowszechniania na rozległych powierzchniach próbnych [National Bird of Prey Monitoring - methods of assessment abundance and distribution on the large plots]. Studia i Materiały Centrum Edukacji Przyrdnioczo-Leśnej, Rogów 3(22): 10-21. [In Polish]]Search in Google Scholar
[Kitowski I 2003: Inter-specific and temporal differences in brood defence of adult Montagu's harriers Circus pygargus and marsh harriers Circus aeruginosus against foxes Vulpes vulpes and avian intruders during the post-fledging dependency period. Biota 4: 57-66.]Search in Google Scholar
[Kitowski I 2008: Breeding ecology of Montagu's harrier (Circus pygargus) in marshes of eastern Poland: importance of aggregated nesting. Acta Zoologica Lituanica 18(2): 83-89.10.2478/v10043-008-0012-1]Search in Google Scholar
[Krupiński D 2009: Ochrona i badania błotniaka łąkowego Circus pygargus na południowym Podlasiu [Conservation and research of Montagu's harrier Circus pygargus in Southern Podlasie]. Studia i Materiały Centrum Edukacji Przyrdnioczo-Leśnej, Rogów 3(22): 158-162. [In Polish]]Search in Google Scholar
[Lontkowski J & Skakuj M 1994: Rozpoznawanie błotniaków: zbożowego Circus cyaneus, łąkowego Circus pygargus i stepowego Circus macrourus [Identification of harriers: hen harrier Circus cyaneus, Montagu's harrier Circus pygargus and pallid harrier Circus macrourus]. Notatki Ornitologiczne 35: 347-371. [In Polish]]Search in Google Scholar
[Tomiałojć L & Stawarczyk T 2003: Awifauna Polski. Rozmieszczenie, liczebność i zmiany [Avifauna of Poland. Distribution, abundance and changes]. Polskie Towarzystwo Przyjaciół Przyrody "pro Natura" Wrocław, 222. [In Polish with summary in English]]Search in Google Scholar
[Wiącek J 2008: Benefis and cost of semi-colonial breeding In the Montagu's harrier Circus pygargus. Belgian Journal of Zoology 138: 36-40.]Search in Google Scholar
[Vintchevski DE & Yasievitch AM 1998: Monitoring breeding performance of Montagu's harrier Circus pygargus in west Belarus, 1993-97, 78. In: Abstracts of "Bird Numbers 1998". 14th International Conference of the EBCC, 23-31 March 1998, Cottbus, 78.]Search in Google Scholar
