Least abundant species:
Podiceps major (1 individual), Pardirallus sanguinolentus (1 individual), Ciconia maguari (1 individual), Leucochloris albicollis (1 individual), Athene cunicularia (1 individual), Colaptes campestris (1 individual), Serpophaga subcristata (1 individual), Poospiza nigrorufa (1 individual).