Strange Tails

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

The growing diversity of the animals of Reserva Don Luis is a fresh source of delight every time we return.  We don't play favourites, but it's impossible not to engage more with some of our more conspicuous guests.  One of these is the strange-tailed tyrant.  The male is stoic in his tolerance of one of nature's strangest - and it would seem least practical - adaptations.  He's willing to suffer to be beautiful, and somehow manages to fly with tail feathers that were surely designed for a bird three times his size.

We love his perseverance; his resolution to succeed against challenge, and his ability to prove that anything is possible.  He's appearing in growing numbers on the Reserva Do Luis, and his success has become an allegory for, and a symbol of, our own.

When we started the process of updating and redesigning our website, we wanted to adopt an image that symbolised our aims and our challenges.  This brave little flycatcher, with his indomitable character, was the perfect choice.

The logo is a stylised profile of a male tyrant, silhouetted against the sunrise.  We coloured the sun the blue of the Argentinian flag in honour of this country's beauty, its climate and the breathtaking span of magnificent animals that it nurtures.

More about strange-tailed tyrants>>

Platyrrhinus lineatus

Bat Research

Our bat team is conducting bat research both in the Ibera Marshes and in other provinces. We are especially concentrating on Misiones at the moment where we find the largest bat in Argentina, Chrotopterus auriitus and Myotis ruber, two species that we are researching.

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Eumops patagonicus (Patagonian Bonnetted Bat)

Eumops patagonicus

Patagonian Bonnetted Bat

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The Patagonian Dwarf bonneted bat is aptly named due to its very large fleshy ears that meet in the middle.  It is the smallest of the genus Eumops and is in the Molossidae family.  It has a long free tail and hairy large feet.  Colouring is dark brown with a paler underbody.  The weight can be from 13-20 grams.

It is found in South America (Argentina, Bolivia and Paraguay), and is a fast flying insectivore with long narrow wings which enable it to fly long distances to hunt.

It is common to find them in houses and other buildings but they also roost in trees.  Their echolocation signal is of a low frequency and can be audible to humans, which is unusual.

We have caught this species many times around the reserve whilst mist netting for bats and we often pick up its echolocation frequency on our detectors.  It is the most common local bat and roosts in the roof of the research cabin.