Náttúrufræðingurinn - 1990, Síða 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.
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