Náttúrufræðingurinn

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Náttúrufræðingurinn - 1990, Side 31

Náttúrufræðingurinn - 1990, Side 31
5. mynd. Fullorðinn fálkakven- fugl (17551), fuglinn náðist á sama óðali 1982, 1985 og 1987. Þessi fugl er móðir 112544 (sbr. 4. mynd) og er mun dekkri. Adult female Gyrfalcon caught in 1982, 1985 and 1987. This is the mother of 112544, cf. Fig. 4. Ljósm. photo ÓKN 1987. Ólafur K. Nielsen & Tom J. Cade 1990a. The annual cycle of the Gyrfalcon in Iceland. National Geograpliic Research 6. 41-62. Ólafur K. Nielsen & Tom J. Cade 1990b. Seasonal changes in food habits of Gyr- falcons in NE-Iceland. Ornis Scandina- vica 21. 202-211. Palmer, R.S. (ritstjóri) 1988. Handbook of North American Birds. Vol. 5. Yale University Press, New Haven & Lond- on. 465 bls. Platt, J.B. 1977. The breeding behavior of wild and captive Gyrfalcons in relation to their environment and human distur- bance. Óútgefin Ph.D. ritgerð, Cornell University, Ithaca, New York. 164 bls. Poole, A.F. 1989. Osprey. Cambridge University Press, Cambridge. 246 bls. Poole, K.G. 1987. Aspects of the ecology, food habits and foraging characteristics of Gyrfalcons in the central Canadian Arctic. Óútgefin M.Sc. ritgerð, Uni- versity of Alberta, Edmonton, Alberta. 120 bls. Roseneau, D.G. 1972. Summer distribut- ion, numbers, and food habits of the Gyrfalcon (Falco rusticolus L.) on the Seward Peninsula, Alaska. Óútgefin M.Sc. ritgerð, University of Alaska, College, Alaska. 124 bls. 141

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