Identification 43 Birds 23 Natural history 13 Zoology 12 Botany 10 Trees 10 Mammals 8 more ... Handbooks, manuals, etc 6 Oiseaux 6 Wild flowers 6 Animals 5 Pictorial works 5 Bird watching 4 Butterflies 4 Collection and preservation 4 Forest animals 4 Forest ecology 4 Forest plants 4 Mushrooms 4 Nature 4 Zoologie 4 Amphibians 3 Animal behavior 3 Animaux 3 Botànica 3 Ciències naturals 3 Coastal ecology 3 Coastal plants 3 Conservation 3 Ecology 3 less ...