Notes

01 January 1965
Comments Notes Methods of distinguishing first-year and adult Shelducks in the field.--The separation of first-year and adult Shelducks Tadorna tadorna in the field has long been very conjectural and there is still a tendency to describe almost any spring or summer floc...
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Notes

01 June 1935
Comments Notes CERTAIN results accumulated during several years of trapping and ringing in a garden are offered below. These are confined to information obtained by operations in a fixed and limited area; observations obtained in other ways, either in the garden or in ...
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