Least abundant species:
Podiceps major (1 individual), Sterna trudeaui (1 individual), Egretta thula (1 individual), Ardea alba (1 individual), Ardea cocoi (1 individual), Chlorostilbon lucidus (1 individual), Circus buffoni (1 individual), Colaptes melanochloros (1 individual), Leptasthenura platensis (1 individual), Rauenia bonariensis (1 individual).