Ardea Official journal of the Netherlands Ornithologists' Union |
Timmerman A. (1954) Korte Mededelingen. Juli-waarnemingen betreffende ruiende Kolganzen, Anser albifrons Scop., in het Zwarte Meer. ARDEA 42 (3-4): 337-339 |
In the end of July 1954 two moulting and consequently flightless White - fronted Geese (Anser albifrons Scop.) were observed in the Zwarte Meer, the wild fowl sanctuary north of the Kamper Eiland, province of Overijssel, Netherlands. |