Observed arrival · 2026-11-13
Hrafn — The Raven Library
An interactive guide to ten raven species, their field marks, folklore, and behavior.
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◎Niche
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- For
- Readers of corvid biology, folklore, and field guides
- Worth noticing
- Its atlas distinguishes species by tail shape, bill, and neck markings, with range and field-mark details.
Field notes
The species index pairs scientific names with range, field marks, and size; the Common Raven entry gives a wingspan of up to about 1.5 metres. Other chapters range from food caching and play to vocalisation and theory of mind, while the folklore section includes Odin’s ravens, Raven the Trickster, and the Tower of London flock.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue