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An experiment of the orientation of juvenile Starlings during spring migration - an addendumThe isolating value of specific song patterns in two sibling species of grasshoppers (Chorthippus brunneus Thunb. and C. biguttulus L.)Sexual differences in migration and winter quarters ducks ringed in the NetherlandsThe future of ringing centres: Bureaus or clubs?Methods of predicting fat reserves in the cootHoe vindt de trekvogel zijn weg?MilieuDe mens en zijn milieuKomen, gaan en blijven staan : enkele voorbeelden van oecologisch onderzoekTarsus or Tibia, where should a bird be ringed?The standard direction of the Scandinavian chaffinch during autumn migration throughout its area of passageLaying date in the coot : effect of age and mate choiceSpatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populationsDoes navigation without visual cues exist in robins?A radar study on the influence of expected ground speed, cloudiness and temperature on diurnal migration intensityThe early reproductive behaviour of the arctic skua, Stercorarius parasiticus (l.)The seasonal decline in the first-year survival of juvenile coots: An experimental approachTiming of current reproduction directly affects future reproductive output in European cootsThe analysis of ringing data: pitfalls and prospectsCausal and evolutionary aspects of the determination of bird numbers with special reference to hole-nesting birds : workshop, 7-11 October 1985, Wageningen, The NetherlandsInfluence of temperature on the laying date of the Coot Fulica atra between-pairs and within-individuals relationships.Some results of waterfowl ringing in EuropeAn experiment on the ending of autumn migration in starlingsRingverslag van het vogeltrekstation nr. 47 (1962)Zugvögeln auf der Spur; alte und neue Aufgaben der VogelberingungOrientation of starlings after displacement to SpainFlyways of Anatitadae ringed in the Netherlands. An analysis based on ringing recoveriesHoming tendencies of Black-headed Gulls in the Kramer gace?Hoe trekken de Nederlandse spreeuwen?Ringverslag van het vogeltrekstation nr. 52The influence of winter severity on Coot (Fulica atra) dispersalBird-ringing in EuropeTwo types of orientation in migrating starlings, Sturnus vulgaris L., and Chaffinches, Fringilla coelebs L., as revealed by displacement experimentsExperiment on the orientation of juvenile Starlings during spring migrationWhy does Arnhem publish its ringing report in a new way?Ringing Research Group ReportJaarverslag van het Vogeltrekstation over 1967-1970Orientatie bij vogelsGreat Tit Parus major survival, and the beech-crop cycleThe starling as a passage migrant in Holland