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Falco Rusticolus

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Falco Rusticolus Falco rusticolus -- Linnaeus, 1758 ANIMALIA -- CHORDATA -- AVES -- FALCONIFORMES -- FALCONIDAE Common names: Gyrfalcon; European Red List Assessment European Red List Status LC -- Least Concern, (IUCN version 3.1) Assessment Information Year published: 2015 Date assessed: 2015-03-31 Assessor(s): BirdLife International Reviewer(s): Symes, A. Compiler(s): Ashpole, J., Burfield, I., Ieronymidou, C., Pople, R., Wheatley, H. & Wright, L. Assessment Rationale European regional assessment: Least Concern (LC) EU27 regional assessment: Vulnerable (VU) In Europe this species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population size may be small, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern in Europe. The small population size in the EU27 qualifies as Vulnerable (D1), and there is not considered to be significant potential for rescue from outside the EU27, so the final category is unchanged. Occurrence Countries/Territories of Occurrence Native: Greenland (to DK); Finland; France; Iceland; Norway; Russian Federation; Sweden Vagrant: Austria; Belgium; Czech Republic; Denmark; Estonia; Germany; Ireland, Rep. of; Latvia; Netherlands; Svalbard and Jan Mayen (to NO); Poland; Portugal; Spain; Switzerland; Ukraine; United Kingdom Population The European population is estimated at 1,100-1,900 pairs, which equates to 2,200-3,900 mature individuals. The population in the EU27 is estimated at 120-180 pairs, which equates to 240-360 mature individuals. For details of national estimates, see Supplementary PDF. Trend In Europe and the EU27 the population size is estimated to be stable. For details of national estimates, see Supplementary PDF. Habitats and Ecology The species occupies three basic habitats for breeding, which are maritime, riverine and montane. It is found widely over tundra and taiga and in the winter, migrants moving south often frequent farm and agricultural land, coasts and native steppe habitat. It breeds from March to July and the eggs are laid in an unlined scrape or depression in a cliff ledge, a disused stick nest of another species on cliff, or occasionally a stick nest in tree or on man-made structure. Clutches are usually three or four eggs. It feeds mainly on birds, with mammals making a lesser portion of the diet. The species is mainly sedentary, especially in Iceland and Scandinavia although juveniles are generally more dispersive than adults and move farthest south (White et al. 2013). Habitats & Altitude Habitat (level 1 - level 2) Importance Occurrence Artificial/Terrestrial - Arable Land suitable non-breeding Forest - Boreal suitable breeding Grassland - Temperate suitable non-breeding Grassland - Tundra suitable breeding Marine Coastal/Supratidal - Sea Cliffs and Rocky Offshore Islands suitable breeding Rocky areas (eg. inland cliffs, mountain peaks) suitable breeding Altitude max. 1400 m Occasional altitudinal limits Threats The species is threatened by the collection of eggs and young for the falconry market (Tucker and Heath 1994) with an unknown number collected each year (White et al. 2013). Illegal shooting also occurs in some areas such as Norway and Sweden. In parts of Fennoscandia, intensive hunting of grouse (Tucker and Heath 1994), such as Ptarmigan (Lagopus mutus) and Willow Grouse (Lagopus lagopus) may affect numbers of this species. Disturbance of nests through tourism is also a problem (Hagemeijer and Blair 1997). The species is also threatened by climate change (Booms et al. 2011). Threats & Impacts Threat (level 1) Threat (level 2) Impact and Stresses Biological resource Hunting & trapping Timing Scope Severity Impact use terrestrial animals Ongoing Minority (<50%) Negligible declines Low Impact (intentional use - species is the target) Stresses Reduced reproductive success Biological resource Hunting & trapping Timing Scope Severity Impact use terrestrial animals Ongoing Minority (<50%) Negligible declines Low Impact (persecution/ control) Stresses Species mortality Biological resource Hunting & trapping Timing Scope Severity Impact use terrestrial animals Ongoing Minority (<50%) Negligible declines Low Impact (unintentional effects - species is Stresses not the target) Indirect ecosystem effects Climate change & Habitat shifting & Timing Scope Severity Impact severe weather alteration Future Whole (>90%) Unknown Unknown Stresses Ecosystem degradation; Indirect ecosystem effects Human intrusions & Recreational Timing Scope Severity Impact disturbance activities Ongoing Minority (<50%) Negligible declines Low Impact Stresses Species disturbance Conservation Conservation Actions Underway Bern Convention Appendix II. CMS Appendix II. CITES Appendix I. EU Birds Directive Annex I. The species is protected in all countries in Europe (Tucker and Heath 1994). The species is now bred in captivity for falconry and research in Europe and Russia, which should alleviate pressure caused by the taking of wild birds (White et al. 2013). An international species action plan was published in 1999 (Koskimies 1999). Conservation Actions Proposed Co-operative efforts between national authorities and non-governmental conservation bodies should look to stop the illegal collection of eggs and young. In some areas of Fennoscandia, more rigorous controls on snow mobile traffic is needed as this has facilitated the collection of wild birds. The legal trade of birds should be more strictly controlled. Important sites for this species should be protected from hydroelectric power dams, roads and tourist establishments. Finally, the effects of acid rain, overgrazing and hunting pressure on grouse populations should be monitored to ensure healthy populations (Tucker and Heath 1994). National species action plans should be developed in range countries and research should be developed on population viability and limiting factors, wintering populations and migration routes and the feasibility of reintroductions. Awareness of the species’s status should also be raised (Koskimies 1999). Bibliography Booms, T., Lindgren, M. and Huettmann, F. 2011. Linking Alaska’s Predicted Climate, Gyrfalcon, and ptarmigan distributions in space and time: A unique 200-year perspective. In: Watson, R.T., Cade, T.J., Fuller, M., Hunt, G. and Potapov, E. (Eds.). Gyrfalcons and Ptarmigan in a Changing World, Volume I. pp. 177 – 190. The Peregrine Fund, Boise, Idaho, USA. Hagemeijer, W.J.M. and Blair, M.J. 1997. The EBCC Atlas of European Breeding Birds: Their Distribution and Abundance. T and A D Poyser, London. Koskimies, P. 1999. International Species Action Plan for the Gyrfalcon Falco rusticolus. Birdlife International Tucker, G.M. and Heath, M.F. 1994. Birds in Europe: their conservation status. BirdLife Conservation Series no. 3, BirdLife International, Cambridge. White, C.M., Kirwan, G.M. and Boesman, P. 2013. Gyrfalcon (Falco rusticolus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. and de Juana, E. (eds.) 2013. Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/53245 on 17 March 2015). Map (see overleaf) .
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