Category Archives: Sightings

Tiger Ratsnake

This diurnal snake, was seen by a group of visitors on our Green Trail, whilst walking in the forest with Adilei.

Although not venomous, they can still give a nasty bite if threatened.   Adelie knows how to deal with this sort of situation as he has spent all his life in these forests. One of the group got this amazing footage, standing at a safe distance.

Tiger Ratsnake, Spilotes pullatus (© REGUA)

These snakes lay eggs and are active on the ground and in trees.   Their prey are mammals and birds, including eggs and nestlings.   

Their defence strategy is to puff up their forebody and shake their tail.   This individual seemed quite relaxed and only shook the tail as it left the group by slithering under a nearby fallen tree.

Great Horned Owls Part 2

You will all remember that our Great Horned Owls Bubo virginianus were first spotted near to REGUA in August last year by Fito Downs and Adilei, REGUA’s Bird Guide. Many visitors were delighted to see this enigmatic species and Adilei caught some images of their coupling at the time.

(© REGUA)

Adilei and I visited the same tree in late December to take a photograph of the resulting juvenile bird.   As you can see the juvenile has grown considerably and as it starts its first moult, the downy first feathers are being replaced by the first adult plumage.

Naturally we are delighted with the progress and hope that the juvenile decides to stay nearby like our Tropical Screech-Owls, we certainly have plenty of old suitable trees in the area. 

Great Horned Owls found breeding at REGUA!

Great Horned Owls, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)
Great Horned Owls, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)

In October 2017 our bird guide Adilei Carvalho da Cunha heard a Great Horned Owl Bubo virginianus at the village of Matumbo, situated at the edge of REGUA. With a large range covering much of North, Central and South America, Great Horned Owl had long been predicted as a future addition to the REGUA bird list, but this was the first record for the reserve.

Tantalizingly, there was no further sign until just a few days ago on the 18 August 2018 when Adilei finally saw a bird – the first sight record for REGUA. When he returned the next morning with his camera he found not one bird but a pair! Then while watching and photographing them he was amazed when they mated right in front of him!

What an incredible record and yet another owl species for REGUA. The addition of Great Horned Owl takes the REGUA bird list to an incredible 479 species! Well done Adilei for finding and documenting such a great record.

Great Horned Owls, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)
Great Horned Owls, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)

Great Horned Owl, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)
Great Horned Owl, REGUA, 19 August 2018 (© Adilei Carvalho da Cunha)

White-bellied Tanager

Though the IUCN states that White-bellied Tanager (Tangara brasilensis ) is considered of “least concern” it really is a stunning bird.

Flying in small flocks, up to 10 strong, this Atlantic Rainforest endemic can be found at REGUA even close to houses that make up its local villages.   It is very responsive to its call, and raises the neck feathers in retaliation to Adilei’s speakers.   It seems to like tree canopies at mid-elevation, but with the two tone powder blue plumage, black mouth parts and white underbelly it is unmistakeable.

White-bellied Tanager, (Tangara Brasiliensis) (© Nicholas Locke)

As they appear quite mottled, one is left intrigued if the colourful feather arrangements are identical to all members of this species.

Recently renamed the White-bellied tanager; it has been split from its Amazonian cousin, Turquoise Tanager.    Those wishing to photograph this bird will not be disappointed.

 

Brown Tanager

The “Near threatened” Brown Tanager  species  (Orchesticus abeilli) like many tanagers, is an arboreal species generally associated with higher altitude forest where occasio

Brown Tanager (Orchesticus abeillei) (© Adilei Carvalho da Cunha)

nally one can find it feeding with in a mixed tanager flock.    Seeing one in tree canopy is quite usual, but viewing one by the REGUA tower at lowland altitude appears a little out of place.

It is an uncommon tanager and habitat loss has not improved things for it, Serra dos Órgãos National Park, just two hours drive from REGUA, is one of several protected areas where this species has been found, but the risk of deforestation outside of the safety of Reserves such as REGUA and the National Park mean the species is becoming more isolated.

The Brown Tanager can be confused with the Buff-fronted Foliage-gleaner, the same rufous supercilliary line, but the typically “tanageresque” thick bill is the giveaway.   These birds like insects but will eat small fruit.

Brown Tanager (Orchesticus abeillei) (© Adilei Carvalho da Cunha)

So why is it around? Another of Natures mysteries, but it certainly was thrilling to view from the tower offering great sightings and photographic opportunities to those with cameras and binoculars.

 

 

Long-tailed Potoo

Though Birdlife and IUCN state the Long tailed Potoo (Nyctibius aethereus) occurs across all South America, it also warns the population is declining.

Long-tailed Potoo (Nyctibius aethereus)(© Nicholas Locke)

The species refined distribution map suggests that in some time the Atlantic Rainforest and the Amazonian species might well be split.  This magical bird is rarely seen and highly desired by most bird observers around the globe.  With its nocturnal habits, its call is a long loud “Raaauuulll…” and the local population is scared by its unexpected call.

It is usually found perched on snags and high stumps and although it’s a large bird, it is well camouflaged and slow to move that often one just misses it.    This species requires good habitat and we are lucky to have one that doesn’t mind being photographed.

Lee Dingain spent lot of time observing this species and wrote an excellent paper that was published in Neotropical Birding.

Dragon Praying Mantis – Projeto Mantis

The Mantis Project is made up of Brazilian biologists Leonardo Lanna, Savio Cavalcante, João Felipe Herculano and designer Lucas Fiat, who are very keen on insects.

Projeto Mantis Team at REGUA (© Projeto Mantis)

They met at UNIRIO University in 2015 and soon discovered that there was no-one studying the impressive Mantis order, Mantodea.    There are over 430 genera and 2400 species divided in 15 families worldwide and they believed there could to be many in the Atlantic Rainforest.

Leonardo and his friends got together and started their first field trips in Valença a town in the South-West of Rio State and the following year caught an undescribed species, a first for science.   Their primary interest was not in just finding and identifying these amazing creatures but also raising Mantises, showing people that these insects are not dangerous or life threatening but beautiful, gentle creatures that indicate the quality of the habitat.

With their increased passion the Team started to work at Rio de Janeiro’s Botanical Garden.   They submitted a project to National Geographic in 2016 and received the funding to research the State of Rio and increase the list of the 12 genera already known there.

However, Rio de Janeiro state is very large and their study varied from sand dune habitat known as “Restinga”, Mangrove habitat to the lofty “Paramos” or sedge growing waterlogged habitat found at close to 2,600 metres above sea level in Itatiaia (two hours drive west of Rio city) where temperatures fall below zero at night in the winter.

Stenophylla sp. (© Projeto Mantis)

The team also included REGUA in their research and arrived to stay at its field station in December 2017.

One mystical Praying Mantis is the Dragon Mantis, Stenophylla cornigera described by English entomologist John Westwood in 1843.   It resembles depictions  of miniature dragon and the young biologists had never seen one.    Imagine their delight when on the first night, an example arrived at the REGUA light and they could see it in full detail.

The team of biologists collected not only one.    A second was found a couple of days later from a forest fragment just seven kilometres away, showing that the species is present along the Guapiaçu valley.    A report and video was sent to National Geographic magazine which was hugely successful.
See https://news.nationalgeographic.com/2018/01/animals-insects-brazil-rainforests/

The overall research revealed another nine genera taking the total Mantodea list in Rio de Janeiro State to 21 genera, of which 15 have been found at REGUA.

Leonardo says that REGUA is at an elevated level of habitat protection.   Perhaps the significant area of remaining forest cover, full altitudinal gradient and low demographic pressure all influence but the fact is that as an indicator species, Praying mantises reveal that the REGUA conservation project is working in the right direction.

Stenophylla sp. (© Projeto Mantis)

For further information, the Mantis Project can be found at: https://www.instagram.com/projetomantis/?hl=pt and https://www.facebook.com/projetomantis/

                Good luck team !!

 

 

 

all photographs courtesy of Projeto Mantis

Blue-winged Macaw

The Blue-winged Macaw (Primolius maracana) is one of those very special Psittacidae that occur between coastal Brazil spanning west to Bolivia and Argentina.   They are found in an area in the North East of Brazil, but they generally seem to occupy the extent of the Atlantic Rainforest.

Primolius maracana, Blue-winged Macaw (© Nicholas Locke)

No longer so common, we remember seeing them nesting in thick bamboo clumps but that was a while ago and before our wetlands were developed.    Perhaps they are not fond of water bodies as they are now observed only on the rain shadow side of the Serra do Mar mountain range.

We like to show these friendly yet shy birds to visitors on the Sumidouro trail in search of other endemics such as the Three-toed Jacamar and Serra Antwren.  These are all drier region species and one can see these wonderful Macaws on tall Imperial Palms typically chatting together in what appears profound chitchat!

Rildo finds Bothrops jararaca

Bothrops jararaca (© Rildo da Rosa Oliveira)

The Atlantic Forest snake species, Bothrops jararaca, a type of pit viper, is one that locals hold in the highest regard and with good reason. It is dangerous only if one steps on one and accidentally gets bitten.

According to serpent specialists, snakes are not uncommon in REGUA’s forests. I have to admit that although I have walked many times in the forest I have failed to find one. However, I am sure that finding one coiled on the path can be a harrowing experience. In the distant past most local people would kill every snake irrespective of colour, thickness and length.

Today the REGUA rangers know that reptiles form an important part of our biodiverse forests and are not aggressive. They now leave them to their own business, and are helping to spread the word that unless they are inadvertently disturbed, most snakes would slither off into the forest before we are even aware of their presence.

REGUA’s World Land Trust “Keepers of the Wild” project sponsored ranger Rildo da Rosa Oliveira found this one by a rock and left it apparently dozing. He didn’t want to look closer!

The elusive Solitary Tinamou at REGUA

The Atlantic Rainforest endemic Solitary Tinamou (Tinamus solitaries) has to be one of the hardest birds to see at REGUA.   I have only once seen one walking a distant trail some years ago.   The bird leapt onto the path in front of me and we walked serenely in single file for what seemed like an eternity but perhaps it was only a few seconds before it left.    I rejoined the bird group I was with half an hour later and told them excitedly what I had seen.    All I could see on their faces were torturous expressions of sadness.    Never again!

Solitary Tinamou egg (© Rildo da Rosa Oliveira)

The Solitary Tinamou occurs throughout the Atlantic Rainforest and suffers from the loss of habitat.   Hunters’ reputation depended on bagging these birds, but with the conservation efforts and reduced hunting the populations are rising and the birds can be heard throughout the reserve.    Ranger Rildo da Rosa Oliveira found this single egg.   He wasn’t able to go back to make sure it hatched, but we do hope all is well for the chick and its parents.