Limosa Index [free pdf]
VOOUS KH The post-glacial distribution of Corvus monedula in Europe [samenvatting] [summary] [free pdf]
BAKKER D, STAM A Inhabitants Noordoostpolder, 8th message; breeding season 1949 [samenvatting] [summary] [free pdf]
JUNGE GCA Results of the collaborative study on the migration, set by the National Museum of Natural History in Leiden, XXXV (1948) [samenvatting] [summary] [free pdf]
COSSEE HWC In 1948 ringed birds and their number [samenvatting] [summary] [free pdf]
CLACEY PA A new race of Turdus viscivorus L. from the western Palearctic [samenvatting] [summary] [free pdf]
IJZENDOORN ALJV The breeding birds 0f the Wieringermeerpolder in 1948 and 1949 [samenvatting] [summary] [free pdf]
BAKKER D A new breeding-case of Anser a. anser (L.) in the Netherlands [samenvatting] [summary] [free pdf]
KATE CGBT Back Finds of foreign ringed birds, 23 [samenvatting] [summary] [free pdf]
SLIJPER HJ Korte mededelingen. Over de broedbiotoop van de bosrietzanger (Acrocephalus palustris) no title in English available [free pdf]
JONG MD Herring Gull (Larus argentatus) grabs a starling (Sturnus vulgaris [samenvatting] [summary] [free pdf]
HEURN FCV Egg small mountain glasses bird Java (Zosterops parvula (palpebrosa) gallio Sharpe) [samenvatting] [summary] [free pdf]
WALDECK K Increase of the snipe (Gallinago Capella) in Vianen and surroundings [samenvatting] [summary] [free pdf]
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