Monday 31 January 2022

Reserva Río Bravo

Laura and I originally planned to rent the car from Cali for ten days. This would provide sufficient time to explore the El Queremal area, the lowlands near El Danubio, San Cipriano, and the Buga area, without feeling rushed at all. With El Danubio plans falling through due to the security situation in the area, we had a few extra days on our hands without any idea where to spend them. 

Alexis had wanted to visit an area called Reserva Natural Río Bravo and since Laura and I had really enjoyed traveling with him and Maria, we decided to convoy there together for a few nights. 

Río Bravo protests a swath of montane and submontane forests in the western Andes. Located at the west end of a large reservoir (Embalse Calima), a dirt road descends from the highway and travels through the reserve. While several small farms line portions of the road, for the most part it passes through decent quality forest. It was a place that I had never heard of before, but I was excited to check it out!


January 15, 2022

We arrived during the mid-afternoon, following a very successful morning of birding at Laguna de Sonso. Given the time of day and heavy overcast conditions along with a moderate breeze, we were not expecting much for birds. The mist-shrouded mountains, however, were beautiful. 

Reserva Natural Río Bravo, Valle del Cauca, Colombia

Reserva Natural Río Bravo, Valle del Cauca, Colombia

We turned up a few interesting birds, despite only exploring the first 500 meters or so. Highlights included several heard-only species (Rufous-breasted Antthrush, Yellow-breasted Antwren) along with flyover Bronze-winged Parrots, several Green-fronted Lancebills, and a solid selection of tanagers including this crisp Purplish-mantled (one of my top ten favourite tanagers in the world, I think). 

Purplish-mantled Tanager - Reserva Natural Río Bravo, Valle del Cauca, Colombia


January 16, 2022

Being from southern Ontario, I am spoiled with lakes. Three Great Lakes can be found within a few hours of where I was raised, while several other lakes and reservoirs are even closer. And, of course, cottage country to the north provides an unlimited number of beautiful lakes. But in the mountains of Colombia, lakes come at a premium. Embalse Calima, the massive reservoir near where we were birding, was apparently a hugely popular tourist attraction among locals. Thousands of people descend to the area on the weekends to jet-ski, wake-board, kite-surf and party. Who knew that a single human-made reservoir could create so much fun?

Of course, this meant that finding cheap accommodations for our visit was a little challenging as we did not want to pay for an overpriced lakeside hotel, or resort to another popular option - camping. But with some persistence we found two inexpensive rooms in a cheap motel in the town of Darién, about a 25 minute drive from the start of our birding road. We had an early (but not too early) start the next morning, arriving at the road just before 7 AM. 

Reserva Natural Río Bravo, Valle del Cauca, Colombia

We parked the car near the top and spent the entire morning slowly exploring the road on foot. The first stretch passed through nice montane forest and we added species like Yellow-breasted Antpitta, Tatama Tapaculo, Sickle-winged Guan, Toucan Barbet, Montane Foliage-gleaner and an endemic Parker's Antbird. A great start.

Montane Foliage-gleaner - Reserva Natural Río Bravo, Valle del Cauca, Colombia


This weevil (genus Brentus) was certainly eye-catching.

Brentus sp. - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Eventually, the road passed through some edge-habitats and a few homesteads. The human alteration to the landscape meant that our bird list grew quickly, all common species though. Of note were our first Double-toothed Kites, Fawn-breasted Tanagers and Yellow-billed Caciques of the year. 

The butterflies started to come out of the woodwork at this point of the day. Mid-morning until early afternoon are the peak butterflying hours. The various puddles and muddy areas alongside the road proved irresistible to many species. 

Archaeoprepona chromus - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Rusty-tipped Page (Siproeta epaphus) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Eresia polina - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Theagenes albiplaga - Reserva Natural Río Bravo, Valle del Cauca, Colombia

This next one is not a butterfly. Rather, it is a species of geometer moth called Siosta bifasciata

Siosta bifasciata - Reserva Natural Río Bravo, Valle del Cauca, Colombia

We passed a small creek and I tried some speculative playback for one of my target species, the Yellow-breasted Antwren which is a species that I had heard before, but never seen. It worked! One came flying in, eager to do battle with the intruder. 

Yellow-breasted Antwren - Reserva Natural Río Bravo, Valle del Cauca, Colombia

A rare Black-headed Brushfinch was lurking nearby. This species had only been reported along this road on a couple of previous occasions so I made sure to take some record shots, as poor as they were. 

Black-headed Brushfinch - Reserva Natural Río Bravo, Valle del Cauca, Colombia

When researching the road I came to the conclusion that I would likely not find any lifers, or bird species that I had never encountered before. I had birded these elevations in the western Andes fairly extensively in Colombia and northern Ecuador. However, there was one possible exception - the Semicollared Hawk. This Accipiter is generally quite rare in its limited range in Andean cloud forest. They are not common anywhere and it is one of those birds that, with enough time spent in suitable habitat, you will eventually stumble across one. I had not. But there had been around four previous reports from this road - not a huge amount by any means, but enough for me to take notice of the possibility.

 Reserva Natural Río Bravo, Valle del Cauca, Colombia

The day was getting quite warm and the birdsong had quieted. I was admittedly focused more on butterflies by this time. But then Alexis stopped us dead in our tracks. A few hummingbirds freaking out about something above the trail caught his eye and he found the object of their dissatisfaction. A small Accipiter with a distinctive collar....

Semicollared Hawk - Reserva Natural Río Bravo, Valle del Cauca, Colombia

There it was in all its glory, a Semicollared Hawk!! It tolerated our presence and we watched it, unobscured, for several minutes until it flew further back into the forest. A gorgeous bird...

Semicollared Hawk - Reserva Natural Río Bravo, Valle del Cauca, Colombia

We continued to walk down the road and the butterflies (and day-flying moths) were now out in full force. It was incredible to see the different colours and shapes, some familiar and others not. Here are a few of my favourites from the day.

Pansy Daggerwing (Marpesia marcella) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Cindy's Leafwing (Fountainea nessus) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Alala Sister (Adelpha alala) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Cindy's Leafwing (Fountainea nessus) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Josia sp. - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Tropical Yellow (Abaeis xantochlora) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Orange Daggerwing (Marpesia berania) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Altinote alcione - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Lamplight Altinote (Altinote ozomene) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Pyrrhogyra sp. - Reserva Natural Río Bravo, Valle del Cauca, Colombia

And while the birding had slowed, it hadn't stopped. I noticed a dapper male Multicolored Tanager in a small mixed flock beside the road. It was a lifer for Maria, and the first good view that Alexis had had of this Colombian endemic. Shortly after, a pair of White-winged Tanagers appeared, the male just glowing red. 

While lacking the flashiness of some of the tanagers, the Cinnamon Flycatchers were quite cute in their own right. 

Cinnamon Flycatcher - Reserva Natural Río Bravo, Valle del Cauca, Colombia

We reached a set of waterfalls around mid-day and took a break to have lunch, followed by a visit of the waterfall. I did not take many photos around this time, the exception being a few butterflies, of course. 

Archaeoprepona demophoon - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Common Morpho (Morpho helenor) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Anna's Eighty-eight (Diaethria anna) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Falcate Skipper (Spathilepia clonius) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Alexis and Maria needed to catch a bus back to Cali since they were meeting a friend that evening, and had plans to explore a different reserve with him. Since we had a long walk back to make it to our car, we hitched a ride on the roof of a 4x4 heading back up the mountain road!



January 17, 2022

Laura and I returned to Río Bravo for one last kick of the can before bringing the rental car back to Cali, and from there, flying to Medellín. This time we enjoyed a later sleep in. Our next week was shaping up to be quite busy and this would be our last rest day for a while. 

Reserva Natural Río Bravo, Valle del Cauca, Colombia

The birding was similar to the previous day but, as always, there were enough differences to keep things interesting. For one, Multicolored Tanagers appeared in greater numbers, and one even stuck around long enough for some distant photos. 

Multicolored Tanager - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Ornate Flycatcher - Reserva Natural Río Bravo, Valle del Cauca, Colombia

We also found a few cooperative Yellow-breasted Antwrens as well as a Rufous-rumped Antwren. This was a new species for Laura, and it was one I had only encountered on one previous occasion. A little while later we heard the distinctive calls of Crested Ant-Tanagers, a bird that looks like a cross between a "regular" ant-tanager and a Northern Cardinal. With some work we both managed adequate views of the skulkers, though photos were not possible. 

Yellow-breasted Antwren - Reserva Natural Río Bravo, Valle del Cauca, Colombia
Rufous-rumped Antwren - Reserva Natural Río Bravo, Valle del Cauca, Colombia

During the early afternoon we explored a different set of waterfalls. The area was downright quiet, compared to the throngs of weekend tourists from the previous two days, and we only had to share the waterfalls with a couple of other people. 


The butterflies were really taking advantage of the sunny conditions at this time. 

Tegosa sp. - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Lamplight Altinote (Altinote ozomene) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Memphis sp. - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Smudged Crescent (Castilia eranites) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Green-eyed White (Leptophobia aripa) - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Other interesting birds included a Barred Hawk and a Green-fronted Lancebill. Lance even posed for photos!

Green-fronted Lancebill - Reserva Natural Río Bravo, Valle del Cauca, Colombia

I will finish the post with a few other insects that I photographed before leaving Río Bravo behind. It was a great visit and a worthwhile place to spend a couple of days. 

Paramastax rosenbergi - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Unidentified Tachinid - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Unidentified Tiger Moth - Reserva Natural Río Bravo, Valle del Cauca, Colombia

Wednesday 26 January 2022

Laguna de Sonso

Laguna de Sonso is a large wetland located within the floodplain of the Río Cauca, about an hour's drive north of Cali. This is one of the last vestiges of wetland around the Rió Cauca as the rest has all been drained and modified by humans. While formerly the lake was wide open, the recent proliferation of an introduced water hyacinth has almost completely closed off the remaining open water sections of the wetland. However, an abundance of wildlife can still be found in the general area. 

Laguna de Sonso, Valle del Cauca, Colombia

Laura, Alexis, Maria and I overnighted in the city of Buga, and we visited the area early on January 15 for a morning of exploration. 


January 15, 2022

For the first several hours of the morning we explored the entrance road, heading south off of Highway 40. This dirt road had some deep potholes but overall it was relatively easy to navigate in our small car. Several open ponds right at the beginning of the road held promise of numerous waterbirds. I pulled over and we scoped the area. 

Laguna de Sonso, Valle del Cauca, Colombia

Cocoi Heron - Laguna de Sonso, Valle del Cauca, Colombia

We noted six species of shorebirds around the edges, flocks of Black-bellied Whistling-Ducks overhead (and some with babies in the ponds!), a half dozen Snail Kites, most of the expected herons and ibises, and much more. 

Neotropic Cormorant - Laguna de Sonso, Valle del Cauca, Colombia

A Neotropical River Otter munching on something provided some excitement, though I botched my photos. Luckily, it would not be my last chance to photograph an otter that day. 

Striated Heron - Laguna de Sonso, Valle del Cauca, Colombia

Osprey - Laguna de Sonso, Valle del Cauca, Colombia

We continued a short ways down the road until a flash of rufous blasted across our path and alighted low in the scrubby vegetation. "Little Cuckoo!" I blurted out. This is a species that I had never properly acquainted myself with, having heard only one individual beforehand. As you will read in this post, it ended up being a spectacular cuckoo day!

Little Cuckoo - Laguna de Sonso, Valle del Cauca, Colombia

We left the car on the side of the road and explored on foot since there were birds everywhere. Great and Bar-crested Antshrikes, Jet Antbirds, Spectacled Parrotlets, Slate-headed Tody-Flycatchers, Gray-cowled Wood-Rails and a Grayish Piculet were just some of them. 

Spectacled Parrotlet - Laguna de Sonso, Valle del Cauca, Colombia

Jet Antbird - Laguna de Sonso, Valle del Cauca, Colombia

A passing worker on a motorbike informed us that the reserve was closed for the day due to maintenance. This was rather disappointing as we were looking forward to our visit, which we hoped would include some time up on the two observation towers. At least the birding along the road was great. Perhaps this would mean that I would not connect with my two main targets at Laguna de Sonso, the Horned Screamer and Comb Duck. 

 Laguna de Sonso, Valle del Cauca, Colombia

A small side trail along the entrance road meandered a short distance into the wetland. Our choice to explore this area with our rubber boots was fortuitous, as Laura and I managed two lifer mammals in the course of ten minutes! First, a Capybara, and then a family of Tayras! The Tayras were a little too quick for photos, but I managed some obscured ones of the Capybara, the largest living rodent species on earth. What a neat animal...

Capybara - Laguna de Sonso, Valle del Cauca, Colombia

Another Neotropical River Otter periscoped up to check us out. 

Neotropical River Otter - Laguna de Sonso, Valle del Cauca, Colombia

We ran into another Little Cuckoo here as well. Nemesis bird one minute, dirt bird the next!

Little Cuckoo - Laguna de Sonso, Valle del Cauca, Colombia

Curious pink egg masses were attached to many branches and roots just above the water line. I later found out that these are produced by a type of apple snail (Pomacea sp.) We later observed a Snail Kite carrying one of the full grown snails. Their uniquely hooked bill assists in procuring the escargot delicacy. 

Apple Snail (Pomacea sp.) egg masses - Laguna de Sonso, Valle del Cauca, Colombia

Snail Kite with Apple Snail (Pomacea sp.) - Laguna de Sonso, Valle del Cauca, Colombia

Despite the reserve being closed, we found a small trail that skirted around the entrance and followed a dyke southeastwards into the wetland complex. For several more hours we explored along this dyke, finding numerous birds and pushing our eBird checklist past 90 species for the morning. 

Laguna de Sonso, Valle del Cauca, Colombia

The bird activity was steady throughout the walk, no doubt due to the assistance provided by the overcast conditions which prolonged the good birding hours.  

Oriole Blackbird - Laguna de Sonso, Valle del Cauca, Colombia

I earlier mentioned that it was a good cuckoo day. Laura came through with an excellent find - a Dark-billed Cuckoo. Despite having a widespread range in South America it is one that can be tough to come across. This was my first really good look at one while it was a lifer for Laura. 

Dark-billed Cuckoo - Laguna de Sonso, Valle del Cauca, Colombia

Alexis spotted a Striped Cuckoo while we also heard a Squirrel Cuckoo at one point for a four cuckoo morning (six, if you count Greater and Smooth-billed Anis, which are technically cuckoos!). The one big miss was the hoped-for Dwarf Cuckoo which is supposedly pretty common in the area. 

Striped Cuckoo - Laguna de Sonso, Valle del Cauca, Colombia

A massive bird flying distantly over the marsh grabbed our collective attention. We quickly realized that only one species could appear so gargantuan at this location - a Horned Screamer. Luck was on our side and it made a beeline for our direction, eventually flying close to our position (but behind some trees). This poor attempt was the best photo that I could manage!

Horned Screamer - Laguna de Sonso, Valle del Cauca, Colombia

Just as we were leaving the area, we paused to watch a Streaked Flycatcher finagle a huge cicada, which it eventually swallowed. It looked like it needed a sip of water afterwards. 

Streaked Flycatcher - Laguna de Sonso, Valle del Cauca, Colombia

Streaked Flycatcher - Laguna de Sonso, Valle del Cauca, Colombia

Streaked Flycatcher - Laguna de Sonso, Valle del Cauca, Colombia

Streaked Flycatcher - Laguna de Sonso, Valle del Cauca, Colombia

Before departing the area and heading westwards to our next destination, we backtracked a little along the busy Highway 40 to view a different section of the roadside wetland. Laura excitedly called to us that she had found two more Horned Screamers! I set up my scope and while they were too far for decent photos, it was a much better (and more prolonged) view than before. We were even able to see the long keratinized structure (the "horn") that both birds possessed. While the Horned Screamer is a fairly widespread Amazonian species, there is something special about the first encounter with a truly unique bird. 


January 17, 2022

The four of us had continued westwards to Embalse Calima after our time at Laguna de Sonso, and we spent two days in the area exploring Reserva Río Bravo. I'll feature that in my next post. 

After dropping off Maria and Alexis at a bus station near Embalse Calima, Laura and I returned again to Laguna de Sonso on our way towards the Cali airport. We had some unfinished business at the laguna - namely, the Comb Duck. 

The Comb Duck is a truly ridiculous looking species of waterfowl. They are massive, goose-sized birds, and the males exhibit a large black knob on the bill. This would be a new species for both Laura and I. While small numbers can be found in the Cauca river valley, they can be a little tricky to track down. 

We only had a short time to search and so we began at the small ponds that I featured initially in this blog post. We struck out. Some promising wetlands on the north side of Highway 40 were up next and this time we had success. Amongst the numerous ibises and whistling-ducks I spotted a very distant, lone, blueish-black and white duck. Comb Duck!! I ran back to the car to get the scope and had just set it up on the bird when it vanished behind some vegetation. It did not reappear. 

Laura and I noticed a truck rumbling past in the distance on a rough gravel track so we figured we would try to make our way over there in hopes of some better views of the bird. 

Comb Duck site - Laguna de Sonso, Valle del Cauca, Colombia

This was a wise choice as not only did we re-find the Comb Duck, but there were eight others with it in the flooded field!

Comb Duck - Laguna de Sonso, Valle del Cauca, Colombia

Comb Duck - Laguna de Sonso, Valle del Cauca, Colombia

Though our attention was largely focused on the ungainly Comb Ducks, we noticed a few other birds in the wetland including several Cinnamon Teals (a lifer for Laura). 

Cinnamon Teal - Laguna de Sonso, Valle del Cauca, Colombia

And with that, we headed back to the Cali airport to return the rental car. A little while later, we were on a plane bound for Medellín where further adventures awaited.