| 释义 |
{{Year box|decade prefix=Bird species new to science described in the}}- Death of Giuseppe Acerbi descriptor of the Yelkouan shearwater
- Foundation of Ipswich Museum
- Bernard du Bus de Gisignies becomes the first director of the Royal Belgian Institute of Natural Sciences He donates 2474 birds from his own collection to the museum.
- Death of Jean Baptiste Bory de Saint-Vincent
- Nicobar megapode described by Edward Blyth
- Alexandre Baudrimont Recherches anatomiques et physiologiques sur le développement du fœtus: et en particulier sur l'évolution embryonnaire des oiseaux et des batraciens (with G. J. Martin Saint-Ange)
- John McClelland becomes interim superintendent of the Calcutta Botanical Garden
- Isidore Geoffroy Saint-Hilaire seeks a collaboration with Movement of the International Literary Exchanges, between France and North America from January 1845 to May, 1846 With Instructions for Collecting, Preparing, and Forwarding Objects of Natural History Written by The Professors Administrators of The Museum Of Natural History At Paris.
Ongoing events{{ornithology-stub}} 2 : Years in birding and ornithology|1846 in science |