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Strange Tails

We're delighted to have a strong population of strange-tailed tyrants at the reserve. So much so that we've adopted these beautiful and endangered birds as the symbol of the Trust

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Help Wanted

We need your help to provide a safe, sustainable environment for these irreplaceable and seriously threatened animals. Your donations - however small - are very welcome indeed, and if you can volunteer useful skills then we'd love to hear from you!

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Reserva Don Luis, Cambyreta, Corrientes, Argentina

                    Crax fasciolataRespect Other Species

Thank you for visiting our website. We're a small trust dedicated to preserving endangered species and defending the habitats that are essential to their survival.

Our wildlife reserve is made up of 1,600 hectares (4,000 acres)  of grassland/wetland in north-east Argentina. We purchased this former cattle ranch in 2010 and have since worked constantly to restore its ecological balance and provide a safe, sustainable habitat for its magnificent flora and fauna.  We are primarily a research station and welcome visiting naturalists, biologists, ornithologists, Bat workers, experienced bird ringers and keen amateurs interested in conservation. We are also looking for volunteers.  See our page on Volunteering

Our Trust is also involved with the Jersey Bat Group, conducting Woodland Bat research in the island of Jersey, UK, where we have recently discovered two new species of bat for the island - Myotis alcathoe and Myotis daubentonii.   We have also put up 93 bat boxes in the island's woodlands in an effort to learn more about our local bats.

Our Transport at Reserva Don Luis                            

                               Maurio on horseback


We have several photo galleries that we hope you will look at including 'Birds of Ibera',  Mammals of Ibera,  Bat ID'Reptiles of Ibera', 'Endangered Species', 'Fauna of Iguazu' amongst others.  

Since April 2015 we have had an example of Crax fasciolata (Bare-faced Curassow) at our reserve, the first in Corrientes for decades.  When we have finally received the respective authorisations, we hope to start a breeding program with this species in order to create a viable population before releasing.  Read more here for information on this Cracid which is highly endangered in Argentina.


After two years of wet conditions due to El Nino, we are now in a dryer period and have prepared ourselves by cutting anti-fire paths and doing some controlled burning.

We now have many examples of the  endangered Strange-tailed Tyrant and it looks as though they have had a good breeding season.  

Strange-tailed Tyrant, Alectrurus risora, Yetepa de Collar

                                 Alectrurus risora


The picture below is of a 7 Banded Armadillo, the smaller of the 2 Armadillo species that we have here.  We discovered this one in the garden near the houses.

Seven-Banded Armadillo

                                 Seven-banded Armadillo


We are currently involved in evaluating the bat species that inhabit this region which is known as the Esteros del Ibera or Ibera Marshes. Please look at our page on Identification of Bats. There is no official bat call library in Argentina so we are creating our own.    We have identified 16 different species from our recordings, some of which are relatively unknown here.  We have also spent some time mist netting for bats during the past year which has resulted in six different species - Molossops temminckii. Eumops patagonicus, Molossus rufusLasiurus ega, Eptesicus furinalis, Myotis nigricans and Myotis riparius.  Finally we feel we are making some progress toward identifying our bat species in a country in which they generally persecute these specialised mammals. See the bats that we have identified on our Mammals of Ibera page.   

In December we returned to the NW mountaineous province of Jujuy, to conduct more bat research with bat expert Cesar Bracamonte.  This time we captured three new species including Eptesicus diminutus, Anoura caudifer and Histiotus macrotis.

We are also involved in batwork in the island of Jersey, Channel Islands with the Jersey Bat Group.  We are studying the habits of our woodland bat species and collecting data using bat boxes, static recorders and netting methods.

Lasiurus cinnereus, Hoary Bat                              

                             Hoary Bat


Patagonian Dwarf Bonneted Bat, Eumops patagonicus              



This is the second largest wetland in South America and is renowned for its biodiversity, in particular amongst the bird species.  We have several endangered species at our reserve including the Maned Wolf, Marsh Deer, Neotropical Otter, Strange-tailed Tyrant, Marsh Seedeater, Greater Rhea and Ochre-breasted Pipit.  We are constantly adding new papers to our page Scientific Reports.

We have some exciting plans for reintroductions, initially of the Bare-faced Curassow where we have made a significant step in obtaining a male for the reserve.

This is very much a live site, with new content and photographs being added constantly.  We plan to return to the reserve for a short trip in February.

We hope you'll enjoy your visit and that we'll be seeing you again.  Any queries please contact us at

Miranda Collett

                                            Marsh Deer



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