It supports a history of identification steps (which allows navigation as well as marking decisions as doubtful/uncertain).
Creators and Contributors
The software was designed by Gregor Hagedorn & Stephan Opitz, and includes suggestions and testing results from Gerd Schmidt, Bob Press, Sonia Hetzner, Verónica Donoso Navarrete, Gisela Weber, and Cornelia Veja. The primary implementer is Stephan Opitz.
We are collecting discussions, bug reports and recommendations on a separate page: JKey Player Testing.
The following are screenshots of a wiki key (Key to common UK street trees) running in the browser, illustrated various functions of the jKey player.
PS: Could this bird hold a key in its mouth?
... but actually, we are a European Jay, so: