Featured records from Roberto Fermín Derna
Birds - Paraguay
Black-faced Tanager (Schistochlamys melanopis)
in Salto Del Guaira, Canindeyú, Paraguay by Roberto Fermín Derna on 01/05/2026
Alder Flycatcher (Empidonax alnorum)
in Trinidad, Itapúa, Paraguay by Roberto Fermín Derna on 19/11/2025
Lesser Shrike-Tyrant (Agriornis murinus)
in Chaco Lodge Laguna Salada, Presidente Hayes, Paraguay by Roberto Fermín Derna on 30/07/2025
Austral Negrito (Lessonia rufa)
in Chaco Lodge Laguna Salada, Presidente Hayes, Paraguay by Roberto Fermín Derna on 30/07/2025
Brown-hooded Gull (Chroicocephalus maculipennis)
in Carmen del paraná, Itapúa, Paraguay by Roberto Fermín Derna on 13/07/2025
Yellow-winged Blackbird (Agelasticus thilius)
in Ruta Yabebyry - San Ignacio, Misiones, Paraguay by Roberto Fermín Derna on 13/07/2025
Red Knot (Calidris canutus)
in Lambaré, Central, Paraguay by Roberto Fermín Derna on 21/09/2024
Ocellated Poorwill (Nyctiphrynus ocellatus)
in Alto Vera, Itapúa, Paraguay by Roberto Fermín Derna on 17/08/2024
Long-trained Nightjar (Hydropsalis forcipata)
in Pirapó, Itapúa, Paraguay by Roberto Fermín Derna on 16/08/2024
Great Horned Owl (Bubo virginianus)
in Loma Plata, Boquerón, Paraguay by Roberto Fermín Derna on 15/07/2024
White-bellied Nothura (Nothura boraquira)
in Filadelfia, Boquerón, Paraguay by Roberto Fermín Derna on 14/07/2024
Uniform Finch (Haplospiza unicolor)
in Parque Nacional Caazapá, Caazapá, Paraguay by Roberto Fermín Derna on 28/03/2024
Black-capped Foliage-gleaner (Philydor atricapillus)
in Parque Nacional Caazapá, Caazapá, Paraguay by Roberto Fermín Derna on 28/03/2024
Spotted Sandpiper (Actitis macularius)
in San Antonio, Central, Paraguay by Roberto Fermín Derna on 02/03/2024
Ochre-breasted Pipit (Anthus nattereri)
in San juan nepomuceno, Caazapá, Paraguay by Roberto Fermín Derna on 07/01/2024
Buff-fronted Owl (Aegolius harrisii)
in Reserva Natural del Bosque Mbaracayú, Canindeyú, Paraguay by Roberto Fermín Derna on 29/09/2023
Sickle-winged Nightjar (Eleothreptus anomalus)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 20/09/2023
Buff-breasted Wren (Cantorchilus leucotis)
in Salto Del Guaira, Canindeyú, Paraguay by Roberto Fermín Derna on 26/02/2023
Southern Bristle Tyrant (Pogonotriccus eximius)
in Alto Vera, Itapúa, Paraguay by Roberto Fermín Derna on 14/01/2023
Great Grebe (Podiceps major)
in Encarnación, Itapúa, Paraguay by Roberto Fermín Derna on 04/01/2023
Olive Spinetail (Cranioleuca obsoleta)
in Reserva San Rafael, Itapúa, Paraguay by Roberto Fermín Derna on 01/05/2022
Common Nighthawk (Chordeiles minor)
in San Cosme y San Damián, Itapúa, Paraguay by Roberto Fermín Derna on 02/01/2022
Black-banded Owl (Strix huhula)
in Reserva San Rafael (cercanías), Itapúa, Paraguay by Roberto Fermín Derna on 27/11/2021
Rusty-barred Owl (Strix hylophila)
in Reserva San Rafael, Itapúa, Paraguay by Roberto Fermín Derna on 13/11/2021
Hudsonian Godwit (Limosa haemastica)
in Lambaré, Central, Paraguay by Roberto Fermín Derna on 09/09/2021
American Golden Plover (Pluvialis dominica)
in Lambaré, Central, Paraguay by Roberto Fermín Derna on 09/09/2021
Blue-billed Black Tyrant (Knipolegus cyanirostris)
in San Juan del Paraná, Itapúa, Paraguay by Roberto Fermín Derna on 15/08/2021
Black-billed Scythebill (Campylorhamphus falcularius)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 21/03/2021
Grey-bellied Spinetail (Synallaxis cinerascens)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 07/02/2021
Comb Duck (Sarkidiornis sylvicola)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 22/11/2020
Barn Swallow (Hirundo rustica)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 22/11/2020
Marsh Seedeater (Sporophila palustris)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 31/10/2020
Short-billed Pipit (Anthus furcatus)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 31/10/2020
Pheasant Cuckoo (Dromococcyx phasianellus) [1 specimen]
in San Juan del Paraná, Itapúa, Paraguay by Roberto Fermín Derna on 24/09/2020
Bearded Tachuri (Polystictus pectoralis)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 07/06/2020
Hellmayr´s Pipit (Anthus hellmayri)
in Pilar, Ñeembucú, Paraguay by Roberto Fermín Derna on 27/05/2018
Pectoral Sandpiper (Calidris melanotos)
in Yuty, Caazapá, Paraguay by Roberto Fermín Derna on 20/04/2018
Mississippi Kite (Ictinia mississippiensis)
in San Pedro, Itapúa, Paraguay by Roberto Fermín Derna on 12/01/2018
Black-throated Saltator (Saltatricula atricollis)
in Puentesiño, Concepción, Paraguay by Roberto Fermín Derna on 10/06/2013
Amazonian Motmot (Momotus momota)
in Puentesiño, Concepción, Paraguay by Roberto Fermín Derna on 09/06/2013
Flavescent Warbler (Myiothlypis flaveola)
in Parque Nacional Paso Bravo, Concepción, Paraguay by Roberto Fermín Derna on 09/06/2013
Insects - Paraguay
Xylophanes chiron
in Encarnación, Itapúa, Paraguay by Roberto Fermín Derna on 15/12/2025
Mammals - Paraguay
Nine-banded Armadillo (Dasypus novemcinctus)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 04/02/2022
South American Coati (Nasua nasua)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 07/02/2021
Lesser Brocket (Mazama nanus)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 07/02/2021
Neotropical Otter (Lontra longicaudis)
in San Cosme y San Damián, Itapúa, Paraguay by Roberto Fermín Derna on 09/08/2020
Coypu (Myocastor coypus)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 20/06/2020
Reptiles - Paraguay
Argentine Snake-necked Turtle (Hydromedusa tectifera)
in Alto Vera, Itapúa, Paraguay by Roberto Fermín Derna on 17/08/2024
Stenocercus caducus
in Reserva Natural del Bosque Mbaracayú, Canindeyú, Paraguay by Roberto Fermín Derna on 30/09/2023
Salvator duseni
in Salto Del Guaira, Canindeyú, Paraguay by Roberto Fermín Derna on 25/02/2023
Tiger Rat Snake (Spilotes pullatus)
in Bella Vista, Itapúa, Paraguay by Roberto Fermín Derna on 07/02/2021
Ophiodes striatus
in Jose leandro, Itapúa, Paraguay by Roberto Fermín Derna on 17/10/2020
Souther Coral Snake (Micrurus altirostris)
in General Artigas, Itapúa, Paraguay by Roberto Fermín Derna on 05/09/2020
Arachnids - Paraguay
Tityus bahiensis
in Encarnación, Itapúa, Paraguay by Roberto Fermín Derna on 28/03/2024