Support Electric Potential
The Ibis is a tactile hunter theorized to have electro receptors in its bill like the Platypus allowing it to detect its prey. It probes the saturated ground in the search for food and ampullary electroreceptors in its bill allow for a response to low-frequency electric signals that are generated by animal nerves and hearts.
For this reason the special characteristic of the Ibis is the Electric Potential.