Belated news of two adult Purple Martins Progne subis seen and photographed with Grey-breasted Martins Progne chalybea by our bird guide Adilei at REGUA on 9 October 2019. Purple Martin breeds in North America and winters across much of South America east of the Andes. Rio state is towards the southern limit of their range. Following a White-throated Seedeater at the wetland on 12 October 2019, also found by Adilei, this long overdue addition to the REGUA bird list brings the total number of bird species recorded here to an incredible 485! This total excludes species seen on excursions. Which bird species next for REGUA?
On 26 January Tom Kompier, accompanied by fellow Odonatologists Magnus Billqvist, Paul Hopkins and Agnes Ludwig, visited the large pond at Vecchi, where he caught and photographed a fresh female of a damselfly species unknown to him. Back at the lodge the riddle was solved using the excellent Damselfly Genera of the New World by Garrison et al. (2010).
This mystery damsel was a member of the genus Aceratobasis. This genus is endemic to the Atlantic Forest, with four known species largely restricted to the lowlands. Although recorded from Rio de Janeiro state, it had so far not been confirmed from REGUA.
I quickly wrote to Natalia von Ellenrieder, who provided a paper she wrote with Rosser Garrison in 2008 with additional information on the genus. The specimen turned out to be Aceratobasis macilenta, the smaller of two very similar species. As these damsels, unlike many of their fellow Coenagrionids, hang of leaves and twigs, “Pendant” seems an apt name.
A second visit a few days later failed to turn up more specimens, but luckily a third visit on 5 February by Magnus, Paul and Susan Loose produced a mature male and a mature female, of which Paul was able to take some great photos. It looks like a small population has gained a foothold in the area!
This is species 208 for the reserve odonata list.
On 26th January, our bird guide Adilei Carvalho da Cunha was looking for cotingas near the gate to Fazenda São Bernardo at Pico da Caledônia with lodge guest Christian Hollville and UK volunteer Sue Loose, when he came across a stunning adult male Blackburnian Warbler. A new bird for Adilei, this is only the second record of this species for Rio de Janeiro state, after one was seen and photographed on 30 December 2016.
The Blackburnian Warbler is a long distance migrant, breeding mainly in the coniferous forests of north-eastern North America, and wintering in the north of South Amercia, primarily in the montane forests in Columbia, Venezuela, as well as in the Andes of Ecuador, Peru and Bolivia. There have been very few sightings of Blackburnian Warbler in Brazil, with this being perhaps only the sixth national record!
Raquel Locke informed members of the Rio Bird Club of the sighting via the WhatsApp group, and some of whom then successfully twitched it on the 28th, when Guilherme Serpa and João Sergio managed to take some great photos.
Although the population is currently thought to be stable, the Blackburnian Warbler is under threat, from climate change that is predicted to push it’s breeding range northwards, to loss of their preferred forest habitat on their wintering grounds.
Unbeknown to us at the time, we have since discovered that this bird was first seen here three weeks before, and amazingly today a female (RJ state’s 3rd!) was also discovered at the same place on the 30th! Both birds are proving a popular attraction for local birdwatchers, and so there is a good chance they may stick around for a while yet before heading back north.
Many thanks to Guilherme Serpa and João Sergio for allowing us to use their excellent photos.
Although we continue to find new birds on the reserve, it isn’t actually that easy, so the King Vulture espied by Biologist Calel Passarelles in a new area of tree planting near our Onofre Cunha forest was especially thrilling.
Raquel Locke (REGUA’s Vice-President) remembers seeing several in the same area over twenty years ago. Two months ago, Marco Wood-Bonelli photographed one soaring over the new area of trees planted. Marco is finalizing his Masters Degree at the Rio de Janeiro Botanical Gardens Institute on the use of individual trees and artificial bamboo perches by birds.
He has already had identified 70 species that regularly use trees in open areas between forest fragments and he was keen to evaluate the use of these ‘island trees’ as stepping stones between forested fragments. His field visits terminated with the wonderful sight of the King Vulture perched on a Cecropia tree.
We hope this is an indication of more sightings to come.
August and September mark the transition from winter to early spring at REGUA and it can be an interesting time for birding. In August many species are already paired up, forming territories and starting to call and even nest-building, while others are still moving around in mixed-species winter flocks. Here are the sightings highlights for August and September.
The undoubted highlights were the 3 new species found that were new for REGUA. The first of these was a superb male Southern Pochard at the wetland, found by visiting photographer Tom Friedel on 22 August. This bird stayed for 5 days and spent most of its time feeding with Brazilian Teal and White-faced Whistling-Ducks.
Other sightings at the wetland include the 3rd record of Magnificent Frigatebird for REGUA (an adult female over on 18 September), the long-staying Red-ruffed Fruitcrow, Black-legged Dacnis, 2 Black-necked Aracari (1 September), Boat-billed Heron, Capped Heron, 3 Rufous-thighed Kite, Crane Hawk, Lesser Swallow-tailed Swift, Reddish Hermit, Black-bellied Whistling-Duck, Rusty-margined Guan, Rufous-capped Motmot, Limpkin, Grey-necked Wood-Rail, Blackish Rail, Amazon Kingfisher, Ringed Kingfisher, Green Kingfisher, Lemon-chested Greenlet, Hooded Tanager, Common Waxbill and a noisy colony of nest-building Red-rumped Caciques.
Lodge garden: The feeders in the lodge garden were extremely quiet in August, especially for hummingbirds. However, things did start to improve in September. Notable sightings at the lodge including Lineated Woodpecker (31 August), Blond-crested Woodpecker (up to 3 regularly visiting the fruit feeder), Toco Toucan, Red-legged Honeycreeper, Hooded Tanager, Yellow-backed Tanager, Green-headed Tanager, Azure-shouldered Tanager, Purple-throated Euphonia, Ferruginous Pygmy-Owl, Scaly-headed Parrot, Orange-winged Parrot, Lesser Swallow-tailed Swift, Curl-crested Jay, Fork-tailed Flycatcher (3 moving through on 18 September – unusual in the lodge garden) and the usual Rusty-margined Guans visiting the bananas. Black Jaonbins reappeared in September, with numbers increasing as the month progessed.
Brown Trail and São José Tower: Shrike-like Cotinga has been elusive this year but birds have occasionally been seen around the São José Tower. A pair of (Greater) Crescent-chested Puffbirds showed well along the trail to the tower and sightings on the Brown Trail include White-necked Hawk, Common Pauraque (2 birds sitting on eggs), Reddish Hermit, White-chinned Sapphire, Grey-hooded Attila, Sooretame Slaty-Antshrike, Rufous-capped Antthrush, Black-cheeked Gnateater, White-bellied (Turquoise) Tanager and Brazilian Tanager. The 2 Tropical Screech-Owls were seen most days roosting around post 0 by the conservation centre.
Green Trail: An adult King Vulture photographed on 12 September was the third new bird for REGUA during this period (bringing the REGUA bird list up to 483, not including species found on excursions)! Also noted were Swallow-tailed Cotinga, Bare-throated Bellbird, Sharpbill, White-necked Hawk, Buff-bellied Puffbird, Spot-billed Toucanet, Black-cheeked Gnateater, Southern Antpipit (6 on 27 August is a notable count), Pin-tailed Manakin, Blue Manakin, Grey-hooded Attila, Rufous-breasted Leaftosser, White-throated Woodcreeper, Black-capped Foliage-gleaner, Buff-fronted Foliage-gleaner, Yellow-green Grosbeak, Gilt-edged Tanager, Brassy-breasted Tanager, Red-necked Tanager and Rufous-headed Tanager.
Waldenoor Trail: A Long-tailed Potoo showed well for a few days in August at a roost site and other birds noted include Swallow-tailed Cotinga, White-tailed Trogon, Frilled Coquette, Yellow-fronted Woodpecker, White-eyed Parakeet, Variegated Antpitta, (Greater) Crescent-chested Puffbird, Spot-billed Toucanet, Olive-green Tanager.
Farmland safari: Our new excursion to the farmland bordering the reserve have proven extremely popular with guests, providing a change of pace from forest birding. A Long-tailed Reedfinch found by our guide Adilei on 1 September was the first record for REGUA. Other species recorded include Scaled Pigeon (heard on 1 September followed the next day by the first sight record for REGUA on 2 September), Campo Troupial, Streamer-tailed Tyrant, Grassland Yellow-Finch, Wedge-tailed Grass-Finch, White-rumped Monjita, Short-tailed Hawk, Great Black Hawk, Savanna Hawk, Ash-throated Crake, White-rumped Swallow, South American Snipe, Guira Cuckoo, Striped Cuckoo, Burrowing Owl, Toco Toucan, Whistling Heron, Lineated Woodpecker, White Woodpecker, Campo Flicker, American Kestrel, Peach-fronted Parakeet, Plain Parakeet, Rufous Hornero, Rufous-fronted Thornbird, Yellow Tyrannulet, Cattle Tyrant, Fork-tailed Flycatcher (first returning bird of the spring seen on 31 August), Bran-coloured Flycatcher, Lemon-chested Greenlet, Long-billed Wren, Masked Yellowthroat, Chalk-browed Mockingbird, Grassland Sparrow, Chopi Blackbird, Red-cowled Cardinal and White-browed Meadowlark. We will be posting an itinerary for this excellent excursion on our website shortly.
On our night-birding excursion several Giant Snipe were seen along with Black-banded Owl, Common Potoo, American Barn Owl, Tropical Screech-Owl and Spot-tailed Nightjar.
Highlights from our excursions off-reserve include:
Macaé de Cima: Saffron Toucanet, Lineated Woodpecker, Rufous-backed Antvireo, Green-crowned Plovercrest, Bertoni’s Antbird, Dusky-taiked Antbird, Sharp-billed Treehunter, Orange-eyed Thornbird, Rufous-capped and Pallid Spinetails, Grey-capped and White-crested Tyrannulets, Shear-tailed Grey Tyrant, Mottle-cheeked Tyrannulet, Rufous-crowned Greenlet, White-browed Warbler, Sharpbill, Black-and-gold Cotinga and Fawn-breasted Tanager.
Pico da Caledônia: Grey-winged Cotinga, Black-and-gold Cotinga, Green-crowned Plovercrest, Versicolored Emerald, Hooded Siskin, Highland Elaenia, Rufous-tailed Antbird, Serra do Mar Tyrannulet, Bay-chested Warbling-Finch, Short-tailed Hawk,
Sumidouro: Three-toed Jacamar and Blue-winged Macaw.
Cabo Frio: Restinga Antwren, American Oystercatcher, White-backed Stilt, Tawny-crowned Pygmy-Tyrant, Yellow-crowned Night-Heron, Semi-palmated Plover, Collared Plover, Black-bellied Plover, Ruddy Turnstone, Hangnest Tody-Tyrant, Masked Yellowthroat and Sooretama Slaty Antshrike.
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.
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.
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.
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.
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.
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.
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.
The “Near threatened” Brown Tanager species (Orchesticus abeilli) like many tanagers, is an arboreal species generally associated with higher altitude forest where occasio
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.
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.