Ardea
Official journal of the Netherlands Ornithologists' Union
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Lieftinck F. & Brouwer G.A.
(1936) Korte mededeelingen. Barmsijsjes (
Carduelis flammea
subspec.) eind mei 1936 op Texel en Vlieland. ARDEA 25 (1-2): 175-176
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