Food habits of some winter bird visitants
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| Huvudupphovsman: | |
|---|---|
| Institutionell upphovsman: | |
| Materialtyp: | Bok |
| Språk: | English |
| Publicerad: |
Washington :
United States Department of Agriculture,
1924.
|
| Serie: | Department bulletin ;
no. 1249 |
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| Organisation: | Library of the Academy of Sciences of the Czech Republic |
| Alla verk inom denna institution: | all items available from Library of the Academy of Sciences of the Czech Republic |
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Food habits of the swallows, a family of valuable native birds Food habits of the swallows, a family of valuable native birds /