Handbook of the Birds of the World Alive – over 20,000 bird illustrations
The Handbook of the Birds of the World Alive is the most comprehensive online reference work for birds. Thanks to detailed descriptions and illustrations, supported by photos, videos, audio recordings and distribution maps, birds from all over the world can be identified. The database is thus an essential reference work for ornithologists and bird lovers alike.
The handbook can be accessed online on ETH Zurich's network or on ETH Library premises.