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Topic
- Grebes 102
- Birds--Nests 28
- Schoenoplectus pungens 26
- Birds--Eggs 15
- Feathers 13
- Hunting 13
- Terns 12
- Zoological specimens--Collection and preservation 11
- Herons 7
- Pelicans 7
- Cormorants 5
- Ducks 5
- Geese 4
- Gulls 3
- Sandpipers 3
- Ibises 2
- Lectures and lecturing 2
- Owls 2
- Plovers 2
- Stilts (Birds) 2