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Subject
- Biology--Fieldwork[remove]47
- Birds28
- Mammals24
- Zoological surveys20
- Scientific expeditions14
- Voyages and travels11
- Animal diversity9
- Bird populations9
- Animal traps6
- Zoological specimens6
- Birds--Ecology5
- Deer5
- McTaggart-Cowan, Ian, 1910-20105
- Invertebrates4
- Mollusks4
- Mule deer4
- Bird trapping3
- Captive wild animals3
- Mammal populations3
- Marine invertebrates3