First personal record of each species by Diego Martín Ferreyra (lifers)
Species by Date 1 to 7 of 7
| Group | Species | Place | Date | Detail | |
 | Aves | Peregrine Falcon (Falco peregrinus) | Villaguay, Entre Ríos, Argentina | 03/26/2018 |  |
| | Aves | Least Grebe (Tachybaptus dominicus) | Villaguay, Entre Ríos, Argentina | 03/24/2018 | |
| | Aves | Rufous-sided Crake (Laterallus melanophaius) | Villaguay, Entre Ríos, Argentina | 03/19/2018 | |
| | Aves | Anhinga (Anhinga anhinga) | Villaguay, Entre Ríos, Argentina | 02/17/2018 | |
| | Aves | Spot-flanked Gallinule (Porphyriops melanops) | Villaguay, Entre Ríos, Argentina | 02/17/2018 | |
| | Aves | Spotted Rail (Pardirallus maculatus) | Villaguay, Entre Ríos, Argentina | 02/13/2018 | |
| | Aves | Black-backed Water Tyrant (Fluvicola albiventer) | Villaguay, Entre Ríos, Argentina | 02/08/2018 | |
Species by Date 1 to 7 of 7