I would like to reiterate this and slightly extend that idea by highlighting the need for a more general “Sign” annotation, in the mobile app.
While some types of sign are already covered (tracks, scat, etc.), there is currently no way to annotate other common forms of indirect evidence, such as:
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Feeding marks (e.g. cones opened by crossbills Loxia)
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Chewed plant material (e.g. rodent gnawing)
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Pecking marks or bark stripping
These are frequent, identifiable from images, and widely used in field ecology, but currently rely on Observation Fields (not possible in the app and not standardized).
A broader “Sign” option (or expansion of “Animal Signs”) would help standardize these observations and make them more usable within annotations.
Thanks a lot!