Not defined in Darwin Core. Indicates if this observation is a never found observation. "Never found observation" is an observation that says that the specified species was not found in a location deemed appropriate for the species.

public bool IsNeverFoundObservation { get; set; }

Public Property IsNeverFoundObservation As Boolean
	Get
	Set

public:
property bool IsNeverFoundObservation {
	bool get ();
	void set (bool value);
}

member IsNeverFoundObservation : bool with get, set