Influence of habitat on breeding performance of Hen Harriers Circus cyaneus in OrkneyAMAR, Arjun; ARROYO, Beatriz; MEEK, Eric et al.Ibis (London. 1859). 2008, Vol 150, Num 2, pp 400-404, issn 0019-1019, 5 p.Article

Mismatches between breeding success and habitat preferences in Hen Harriers Circus cyaneus breeding in forested landscapesWILSON, Mark W; O'DONOGHUE, Barry; ROTELLA, Jay J et al.Ibis (London. 1859). 2012, Vol 154, Num 3, pp 578-589, issn 0019-1019, 12 p.Article

Habitat use by Hen Harriers Circus cyaneus on Orkney: implications of land-use change for this declining populationAMAR, Arjun; REDPATH, Stephen M.Ibis (London. 1859). 2005, Vol 147, Num 1, pp 37-47, issn 0019-1019, 11 p.Article

Hen harriers and red grouse: economic aspects of red grouse shooting and the implications for moorland conservation : Hen harriers and red grouse, 1 year onSOTHERTON, Nick; TAPPER, Stephen; SMITH, Adam et al.Journal of applied ecology (Print). 2009, Vol 46, Num 5, pp 955-960, issn 0021-8901, 6 p.Article

Hen harriers and red grouse : science, politics and human-wildlife conflictTHIRGOOD, Simon; REDPATH, Steve.Journal of applied ecology. 2008, Vol 45, Num 5, pp 1550-1554, issn 0021-8901, 5 p.Article

Diagnosing the environmental causes of the decline in Grey Partridge Perdix perdix survival in FranceBRO, Elisabeth; REITZ, Francois; CLOBERT, Jean et al.Ibis (London. 1859). 2001, Vol 143, Num 1, pp 120-132, issn 0019-1019Article

Interspecific territoriality of northern harriers : the role of kleptoparasitismTEMELES, E. J.Animal behaviour. 1990, Vol 40, Num 2, pp 361-366, issn 0003-3472, 6 p.Article

Global dispersion of nesting Hen Harriers Circus cyaneus ; implications for grouse moors in the U.KPOTTS, G. R.Ibis (London. 1859). 1998, Vol 140, Num 1, pp 76-88, issn 0019-1019Article

The impact of hen harriers on red grouse breeding successREDPATH, S. M.Journal of applied ecology. 1991, Vol 28, Num 2, pp 659-671, issn 0021-8901Article

Sobre técnicas de caza y alimentación del Esmerejón Falco columbarius en España = Hunting techniques and food habits of the Merlin Falco columbarius in SpainSUNYER, C; VINUELA, J.Miscel.lània zoològica. 1991, Vol 15, pp 247-248, issn 0211-6529Article

Using distribution models to test alternative hypotheses about a species' environmental limits and recovery prospectsANDERSON, Barbara J; ARROYO, Beatrice E; TRAINS, Justin et al.Biological conservation. 2009, Vol 142, Num 3, pp 488-499, issn 0006-3207, 12 p.Article

The relative importance of prey availability and intruder pressure in feeding territory size regulation by harriers, Circus cyaneusTEMELES, E. J.Oecologia. 1987, Vol 74, Num 2, pp 283-297, issn 0029-8549Article

Hunting habitat selection by hen harriers on moorland : Implications for conservation managementARROYO, Beatriz; AMAR, Arjun; LECKIE, Fiona et al.Biological conservation. 2009, Vol 142, Num 3, pp 586-596, issn 0006-3207, 11 p.Article

Recent trends in counts of migrant hawks from northeastern North AmericaTITUS, K; FULLER, M. R.The Journal of wildlife management. 1990, Vol 54, Num 3, pp 463-470, issn 0022-541X, 8 p.Article

Hen harrier management: insights from demographic models fitted to population dataNEW, Leslie F; BUCKLAND, Stephen T; REDPATH, Stephen et al.Journal of applied ecology (Print). 2011, Vol 48, Num 5, pp 1187-1194, issn 0021-8901, 8 p.Article

The effects of supplemental perch sites on avian predation and demography of vole populationsWOLFF, J. O; FOX, T; SKILLEN, R. R et al.Canadian journal of zoology. 1999, Vol 77, Num 4, pp 535-541, issn 0008-4301Article

Differences in age and sex ratio among migrating and wintering raptors in Southern SwedenKJELLEN, N.The Auk. 1994, Vol 111, Num 2, pp 274-284, issn 0004-8038Article

Hen harriers on a Scottish grouse moor: multiple factors predict breeding density and productivityBAINES, David; RICHARDSON, Michael.Journal of applied ecology (Print). 2013, Vol 50, Num 6, pp 1397-1405, issn 0021-8901, 9 p.Article

Long-term impact of changes in sheep Ovis aries densities on the breeding output of the hen harrier Circus cyaneusAMAR, Arjun; DAVIES, Jacob; MEEK, Eric et al.Journal of applied ecology (Print). 2011, Vol 48, Num 1, pp 220-227, issn 0021-8901, 8 p.Article

Raptors and Red grouse : Conservation conflicts and management solutionsTHIRGOOD, S; REDPATH, S; NEWTON, I et al.Conservation biology. 2000, Vol 14, Num 1, pp 95-104, issn 0888-8892Article

Food niches of sympatric Marsh Harriers Circus aeruginosus and Hen Harriers C. cyaneus on the Dutch coast in winterCLARKE, R; BOURGONJE, A; CASTELIJNS, H et al.Ibis (London. 1859). 1993, Vol 135, Num 4, pp 424-431, issn 0019-1019Article

Behavioural interactions between Hen Harriers and their moorland preyREDPATH, S. M.Ornis Scandinavica. 1992, Vol 23, Num 1, pp 73-80, issn 0030-5693Article

Weather-dependent kleptoparasitism and aggression in a raptor guildTEMELES, E. J; WELLICOME, T. I.The Auk. 1992, Vol 109, Num 4, pp 920-923, issn 0004-8038Article

The influence of microtines on polygyny, productivity, age, and provisioning of breeding Northern Harriers: a 5-year studySIMMONS, R; BARNARD, P; MACWHIRTER, B et al.Canadian journal of zoology. 1986, Vol 64, Num 11, pp 2447-2456, issn 0008-4301Article

AERIAL TALON-GRAPPLING IN NORTHERN HARRIERSCRAIG TH; CRAIG EH; MARKS JS et al.1982; CONDOR; ISSN 0010-5422; USA; DA. 1982; VOL. 84; NO 2; PP. 239Article