Nestbeschmutz, Das > +
2/­90,­ 6/­90,­ 9/­90,­ 11/­90,­ 2/­91,­ 7/­91,­ 11/­91,­ 2-­3/­92,­ 5/­92,­ 5-­6/­92,­ 10/­92,­ 12/­92-­2/­93,­ 6/­93,­ 12/­93,­ 4/­94,­ 7/­00