Collective Action for Conservation: Osa’s Camera Trap Network

Blog written by Juan Carlos Crus Diaz, Feline Program Coordinator

I can clearly remember:  It was a hot but humid morning, which is common in this area during the dry season. As we walk through the rainforest, we struggle to keep our pace on the trail – it is steep and the humidity make us feel like we are running a marathon. We come to the last hill and finally reach the ridge of the mountain chain that goes through Piedras Blancas National Park. We summit the top and can see both the dense forest on one side and the ocean in the other. The views are amazing!

This location on the Golfo Dulce in the Osa Peninsula is part of the property of Saladero Eco-Lodge, where the owners are excited about partnering with us to study Osa’s wildcats. We strategically place a camera trap along their property on the mountain ridge in hopes to obtain photographic evidence of the mammals, especially wildcats, that rely on these habitat routes to travel long distances.


First camera trap photo from Saladero Ecolodge of a jaguar on the property.

First camera trap photo (2014) from Saladero Ecolodge of a jaguar on the property.

After leaving the cameras in place for several months, we returned to retrieve the first photographs –  the results were revealing! Pumas and peccaries were easily spotted on the footage, highlighting the ongoing vital predator-prey relationship in the area. There were also an array of different mammals, birds and other wildlife. What biodiversity!

Great Curassow (Crax rubra) caught on an early camera trap in 2014.

Great Curassow (Crax rubra) caught on an early camera trap in 2014.


Collared peccary (Pecari tajacu) caught on an early camera trap in 2014.

Collared peccary (Pecari tajacu) caught on an early camera trap in 2014.

Since placing these first camera traps in 2014, more ecolodges have joined this collective effort. In 2017, partners joined forces around the Osa and launched the “Osa Camera Trap Network” –  one of the most diverse and collaborative research efforts in Central America. Year after year, more people have started to notice the importance of monitoring mammal populations that serve to maintain the integrity of these ecosystems. Communities that once only saw ecotourism development from afar, are now becoming a part of it. Community groups have formed important fauna monitoring projects and more locals have brought ecotourism to their communities where more people can benefit. And, most exciting, these local communities –  along with ecolodges, private owners, universities, governmental institutions and tourism agencies-  have joined together to study the wildcats as part of  this important Osa Camera Trap Network.

Members of the Osa Camera Trap Network from “Rancho Quemado” installing camera traps.

Members of the Osa Camera Trap Network from “Rancho Quemado” installing camera traps.


But studying wildcats is difficult. It requires covering large areas and a great amount of manpower.  Four years after the installation of the first camera trap in Saladero Ecolodge, I find myself walking through the dense forest in the boundary of Corcovado National Park and the community of “Los Planes.” Guided by two members of the community, we look for a suitable place  to install their camera trap station. As we sit on a fallen tree and discuss placing a camera trap at this location, I think how much we have achieved in the past four years in order to make this collaborative region-wide initiative a reality.

Members of the Osa Camera Trap Network from the community group of “Los Planes” installing camera traps.

Members of the Osa Camera Trap Network from the community group of “Los Planes” installing camera traps.

This year, the Osa Camera Trap Network is setting up more than 200 camera traps all over the Osa Peninsula!  This is the biggest array of camera traps ever carried out in Central America and importantly, it does not just belong to a single institution but rather to a collective group of stakeholders pursuing the same goal: to generate the scientific information necessary to conserve wildcats and prey.


2017 camera trap photo of a jaguar on Osa Conservation's property

2017 camera trap photo of a jaguar on Osa Conservation’s property

Times are changing and methods and approaches for research should change as well. We are in a special time to show that collective efforts can bring good results when it comes to solve problems that concerns to everyone. There is a saying in Costa Rica “Union makes force” but the one I like the most states “An image says more than a thousand words.

To learn more about Osa’s Camera Trap Network, as well as Osa Conservation’s Wildcat Conservation Program, please visit our program website.


Dutchman’s Pipes: Velvet Traps and their Pollinators

Blogpost written by Marvin López, Botanical Specialist

Flowers of Aristolochia goudotii, commonly called pipevine, in its natural habitat. It is a woody, evergreen, twining vine of the birthwort family that produces unusual apetulous flowers, each of which features a calyx resembling a dutchman’s pipe.

Flowers of Aristolochia goudotii, a plant commonly called pipevine, in its natural habitat. It is a woody, evergreen, twining vine of the birthwort family that produces unusual apetulous flowers, each of which features a calyx resembling a dutchman’s pipe.

I have lived most of my life here, in the Osa Peninsula, one of the places with the most extensive forest cover of my country, Costa Rica. It holds a vast diversity of plant species, some of which are still unknown to the scientific world. There have been many changes in the region but, unfortunately, some of them like the population growth and soil degradation have not been good for the local flora and fauna.


Aristolochia leuconeura, growing in the nursery. This plant is characterized by its pretty glabrous cordate leaves with leaf veins in white.

I started working in the forest almost 9 years ago and since my first day, I have not stopped learning about the flora of the region; every day I learn something new. Last year, I had the honor of joining the staff of Osa Conservation to work on the conservation of plants and their ecological processes. I have spent every New Year’s Eve in this unique place, in the middle of the rainforest, because I like to give myself lots of time to admire the vast diversity of plants. One of them is a vine full of flowers, the genus Aristolochia, commonly known as Dutchman’s pipes.  The species in this genus are characterized by a stunning pollination process. It is also said that these plants are carnivorous, but they only trap flies and other insects for a day then release them.

Birthwort family (Aristolochiaceae) section in the nursery.

Birthwort family (Aristolochiaceae) section in the nursery.

Their flowers have a tubular shape with a wide base that allows them to capture insects. The first flowering day, the flowers emit an intense perfume that smells like rotten meat to attract their pollinators. The flies then travel down the flower tube to where the receptive female part is located. The flies will get trapped inside of the flower, unable to escape due to the hairs that cover the inside. The second day, only when the flower have been pollinated, the smell disappears and the hairs wither as the floral tube widens, freeing the flies that get covered in pollen on their way out. Then, the flies will go inside another flower with fertile female organs, get trapped and pollinate the flower thanks to the pollen they were carrying. Finally, they escape the next day to start the process from the beginning.

Marvin labeling Aristolochia goudotii, in the nursery.

Marvin labeling Aristolochia goudotii, in the nursery.

In the Osa Peninsula, there are approximately 6 species of Aristolochia. We have been able to collect 3 species and plant them in the greenhouse. We will keep looking for more species in order to learn more about this wonderful plant and its ecological interaction with flies.

I would also like to encourage all of you to come and visit the Osa Peninsula during this season because, like this plant, many others develop flowers with beautiful and striking colors. It is a present that nature gives to our eyes. During these hot months, there is nothing better than finding a tree with good shade to lay down under, rest and enjoy the beautiful landscapes and sunsets of the Osa.


Why Everyone Should Care About Rainforests

Post by Philip Przybyszewski, DC Office Intern.

A view of the far-reaching canopy and the Pacific Ocean from up above.

A view of the far-reaching canopy and the Pacific Ocean from up above.

No, this isn’t just an issue for raving environmentalists. This is a big deal for everyone. Even though they only cover 2% of the Earth’s surface, they are of utmost importance to all species, particularly humans.

Tropical rainforests are the wettest, most vegetation-intense biomes in the world, so densely-grown that a canopy is formed that weaves together the ecosystem into a far-spanning green landscape. Incredibly, this ecosystem is said to sustain over 50% of the world’s species. Often, these species are endemic, meaning they only inhabit these specific regions covered by rainforest. The diversity in the kinds of species present is unbelievable: from primates to felines, amphibians to insects.

A Capuchin monkey scours the tall trees and swing through its habitat in the canopy. Photo by Manuel Sánchez.

A Capuchin monkey scours the tall trees and swings through its habitat in the canopy. Photo by Manuel Sánchez.

For humans, rainforests are vital in diminishing the impact of climate change, as the dense vegetation absorbs CO2 and produces oxygen. Rainforest plants store the carbon emitted from human economic activity and offset the key negative impact of fossil fuels on the environment. Despite the clear service provided by this ecosystem to all species on Earth, their presence is dwindling, with an estimated 78 million acres lost every year, deforested to make room for hydroelectric dams, agricultural development, and mining operations. In the process of these globally-significant economic activities, humans destroy carbon-holding vegetation and simultaneously release more carbon dioxide into the atmosphere, while eliminating one of the Earth’s best ways of storing it away.

The tropical wet forest of the Osa Peninsula is incredibly rich in vegetation. Here is just one angle covered by a camera trap.

The tropical wet forest of the Osa Peninsula is incredibly rich in green vegetation. Here is just one angle covered by a camera trap.

The Osa Peninsula is predominantly classified as a tropical wet forest, the biome most conducive to the flourishing of a rainforest. This small part of Costa Rica, alone, has over 300 species found nowhere else in the world and has the most intact system of mangrove forests and wetlands in all of Central America. Protecting tropical rainforests has been a local priority with global significance: rainforest health not only preserves the habitat of thousands of species, but also mitigates the negative impacts of unsustainable human economic development. The decisions of a geographically-limited few affect everyone, in the sense that Osa Conservation’s mission to preserve and protect the tropical rainforest of the Osa plays a small, but important part in the reduction of atmospheric carbon dioxide.

Massive, rain-carrying clouds form and unleash torrents of water daily in this topical environment. The intensive growth of the rainforest would be impossible without the sustenance provided by the beautiful thunderheads in the distance.

Massive, rain-carrying clouds form and unleash torrents of water daily in this tropical environment. The intensive growth of the rainforest would be impossible without the sustenance provided by the beautiful thunderheads in the distance.


Buzzing about Stingless Bees

Blogpost written by Sydney Denham, Conservation Volunteer

Sydney's favorite stingless bee nest

Sydney’s favorite stingless bee nest.

Studying bees can be tedious work, but not because of needing to carefully avoid the stingers. The bees I’ve been observing (thankfully) lack them, making it easy to get up close and personal with my little buzzing friends. Rather than getting stung, this work is difficult because the nests are very challenging to find.

I’ve learned that field biology is not just recording data vast quantities of data all day. First, the subject must be found to be analyzed, which is easier said than done. In the case of the stingless bees, romping through the thick jungle searching every nook and cranny for the small tube-like hives is the real challenge. The study is an exploration of the relationship between stingless bees and their local ecosystems and their role in pollinating native plant species, particularly vanilla. More knowledge about these bees could potentially lead to the harvesting of their medicinal honey by local farmers and conservationists.

Johan and Luis point out a bees nest.

Johan and Luis point out a bees nest.

It is as exciting as finding buried treasure when we spot one of the hives. My pencil glides across my field notebook to record the finding, and I get to work observing any behavioral patterns that could be significant to the study. I craftily set up a log bench at the base of a tree and observe a hive to really get to know the bees. Not knowing what might turn out to be important, I jot down any activity that could come across as useful information.

I really feel like a scientist, designing timed experiments and collecting a few small samples to take back to the lab for identification and further investigation. The study is in its early stages, making it very open-ended. Hilary Brumberg (Rios Saludables program coordinator and the leader of our bee expeditions), a few other Costa Rican and international volunteers, and I brainstorm methods to make the study as logical and effective as possible. Having a say in the study design makes me feel involved on a whole new level with the team here at Osa Conservation.

Equipped with my waterproof notebook, sample collection supplies, and hiking gear, the budding biologist in me is ready to take on the jungle and all its buzzing little critters.

Bee team volunteers Sydney, Rachel, Luis, and Johan during an expedition.

Bee team volunteers Sydney, Rachel, Luis, and Johan during an expedition.


Gliding Tree Frog Frenzy

Blogpost written by Manuel Sánchez, Sea Turtle Program Coordinator and Wildlife Photographer


The first rains.

After six long months of the dry season, strong downpours have returned at last to wake the forest once more, and with them return the creatures that hid away from the rainless weather. The first glass frogs (Neobatrachia centrolenidae) begin to sing in the creeks and rivers, the water level gradually rising with the first floods of the year. The rainy season advances across in a roaring song, and various amphibian species begin to search for water pools or swamps in which to lay their eggs. Throughout my whole time in the Osa, I most anxiously await the opportunity to watch the reproductive explosion of a species of red-eyed frog, the gliding tree frog (Agalychnis spurrelli). It’s an event that leaves me speechless: thousands of frogs congregate to lay their eggs. The first time I saw the spectacle, I stayed for the entire day, along with other animals that mirrored my interest; predators stayed day and night as I watched. For the past three years, I’ve visited this place annually and every time I stay for hours on end to see these frogs and contemplate the incredible species which we have in our forest.

The rainy season will always be my favorite. And even though the water might be a little much, that’s how our rainforest is sustained!


Young Citizen Scientist: From Butterflies to Pumas

Blogpost written by Eli Boreth,  9 years old Conservation Volunteer

This Butterfly Isn’t Blue

Courtesy of Active Wild

Credit: Active Wild


This is a Blue Morpho Butterfly. This butterfly lives in tropical and neotropical (which are slightly drier) rainforests in Mexico and Central America, and throughout South America.

Although this butterfly looks blue, it has no blue pigment. It appears blue because of how its wing scales are structured. The wing scales are made up of cells that are shaped like Christmas trees. When light bounces off the “branches” of these cells, some of it bounces off the top and some off the bottom of each branch. The colors within the light waves then intersect and cancel out so they don’t reach your eye, except for blue light.  

The wavelength of blue light is the perfect size so that when it bounces off the “branches” the waves travel parallel to each other and reach your eye.

But that doesn’t give them their incandescent blue. That’s because the scales also have cells that absorb green and red light to make it even more blue.

I Built a Cat at Osa Conservation

Puma skeleton

While my family and I were with Osa Conservation, we built a puma skeleton that was found in a tree. The puma was a juvenile. The people who found it think that maybe this puma was hunting a bird or monkey, then it slipped and caught its neck in a “V” of the tree where it died.

When we got to Osa Conservation, the puma bones were in a box. The “wild cat guy” with Osa Conservation, Juan Carlos, helped us start  building the skeleton and was excited for us to finish it on our own. We started the second week that we were volunteering with Osa Conservation, and finished it a few weeks later.

While we were building the skeleton, we learned a lot about the anatomy of cats and how perfectly all of a cat’s bones fit together. We also saw that the front foot was larger than the back foot. Also, behind the rib cage and ALL the way to the pelvis there are no bones! It was also really cool that because the puma was climbing when it died, I could see the retractable claws!

The following week, we were going to construct a Tamandua Anteater skeleton that Juan Carlos had buried a couple years ago, but we couldn’t find where he had buried the bones or perhaps something had moved them!



Happy World Wetlands Day!

Blogpost written by Luis Carlos Solis, Asistencia Técnica


World Wetlands Day is celebrated on February 2 of each year, the date on which the Convention on Wetlands was adopted. Wetland is all those areas that remain flooded or at least, with soils saturated with water for long periods of time – thus, water defines its structure and ecological functions. Wetlands are vital for human survival. As one of the most productive ecosystems on the planet, they harbor a biological diversity and water sources on which countless species of plants and animals depend for subsistence. However, the surface and quality of wetlands continue to decline worldwide, so the benefits that wetlands provide to human beings are in danger.


Mangroves in the wetlands along Rio Esquinas, Costa Rica

Due to the endangered condition of wetlands worldwide, on February 2, 1971, the Convention on Wetlands was adopted in the town of Ramsar, Iran. This convention is the first intergovernmental treaty that serves as a framework for national action and international cooperation for the conservation and sustainable use of wetlands. The convention includes lakes and rivers, underground aquifers, swamps and marshes, wet grasslands, peatlands, oases, estuaries, deltas and low tides, mangroves and other coastal areas, coral reefs, and artificial sites such as fish ponds, rice fields, reservoirs and saltworks. To date, the list includes 2,200 designated “Ramsar sites” covering an area of more than 2.1 million square kilometers, an area larger than Mexico.



The Térraba Sierpe wetlands in Costa Rica from above


In the case of Costa Rica, about 350 wetlands are reported, which cover 7% of the national territory; 12 of them are considered of global importance and therefore were declared as Ramsar Sites. One of these sites is the Térraba Sierpe National Wetland, located in the south of the country, which with an area of 32,000 hectares (79,073 acres) corresponds to the largest mangrove area in the country. Mangroves are one of the most productive ecosystems on the planet, offering a variety of services such as recreation, tourism, carbon capture, water purification, shelter for living beings and coastal protection.



Osa Conservation staff assessing wetlands by boat.

Osa Conservation is dedicated to protecting these vital habitats. Currently, we are working in the Térraba Sierpe National Wetlands  on a project to  “strengthen the mangrove ecosystems and improve the quality of life of the coastal populations.” This project will help to actively restore 50 hectares of mangroves, working in conjunction with the Association of Fishermen and Marine Resources of Ajuntaderas y Afines (APREMAA), a local organization that is in charge of establishing mangrove nurseries and preparing the land. In addtion, the project  promotes sustainable practices regarding the extraction, processing and commercialization of mollusks in the wetlands. Efforts of this nature seek to preserve the services offered by wetlands through the sustainable use of their resources for the benefit of coastal marine communities.




Osa’s First Junior Christmas Bird Count – Results Are In!

Blogpost by Luis Carlos Solis, Asistencia Técnica

We are excited to present the results of the “First Junior Christmas Bird Count, Península de Osa 2017” in conjunction with the Natural Resources Foundation of Wisconsin, Fundación Neotrópica and 16 educational centers in the Osa. During this special day, participants saw a total of 93 different species and 595 individual birds!

Throughout the event, school children learned about the importance of local and migratory birds and their habitat,  helping to create the next generation of guardians for Osa’s natural heritage. The logo of the event consisted of a Golden-winged Warbler (Vermivora chrysoptera), which was selected due to its status as a wintering migratory bird in the Osa from Canada/United States and its threatened status, classified by the Red List IUCN due to the loss of its habitat from agricultural expansion.


This First Christmas Junior Bird Count in the Osa was carried out on December 5 – 7, 2017 with the participation of 165 children from local schools.  In each of the 16 schools, children learned from a naturalist guide about why birds are important indicators of global health and they learned about the migratory Golden-winged Warbler as they colored the logo in creative ways.  Students then went out with the naturalist to walk around the school property looking for birds and registering all of the birds that they were able to see. Students learned how to properly use a scope and binoculars, to identify different bird species, and to record data from their sightings.





With the success of this First Christmas Bird Count, children were able to experience the beauty of nature while supporting research to monitor the health and long-term condition of bird populations worldwide.


Many thanks to the support of the following institutions and organizations: Golfito Campus, UCR, Ficus Tours, Osa Birds: Research and Conservation, Osa Wild, Osa Dreamcatcher Tours, Utopia Drake Outdoors, Osa Birders Tours, Lapa Rios Ecolodge, Danta Corcovado Lodge, and the La Palma Academic College. Thank you very much for your collaboration!


The first 24 hours as a volunteer

Blogpost written by Hanae Garrison,  Volunteer

4:30 am – I rise before the sun has woken up and while the nocturnal organisms are still out. I shove some food into my body in preparation of the day ahead. Another volunteer and I are staying at the cabins near the farm, where Osa Conservation grows much of their fresh vegetables, fruits, medicinal plants, and cares for their animals, restoration plots, botanic garden and much more.

5:00 am – After gearing up with our head lamps and day packs, we head out on the main road and walk for 25 minutes to the Biological Station. The stars shine through the trees and the hum of insects is more noticeable. Cars occasionally roll by with people starting their day before the sun’s heat gets too hot.

5:30 am – We meet up with Manuel Sánchez, the Sea Turtle Conservation Program Coordinator.  We hike through the woods as the sun begins to rise. He shows us a taste of what he does every morning to aid the survival of 4 species of endangered sea turtles – Olive Ridley, Green Sea Turtles, Leatherback, and Hawksbill (with the Olive Ridley and Green Sea Turtles being most common in the Osa). We look for threatened sea turtle nests along the beach and, when needed, the team will help excavate and transport the eggs to a protected hatchery, away from predators and poachers. When the time comes many weeks later, the baby turtles are released on the beach with enough distance to imprint on the sand while making their way to the waves, helping ensure their return to this same beach as adults.


The hatchery allows sea turtle nests to incubate safely, without the risk of predation or poachers.

6:45 am – We release two Olive Ridley nests containing around 100 turtles. All of them safely reach the waves, some faster than others. Crossing the open beach is often the most difficult part of the turtles’ journey.  With this relocation and careful release, we help provide a safe passage for the tiny turtles across the beach and increase their chances of survival. In the wild, it’s estimated that only 1 in 1,000 makes it to adulthood. As the waves crash onto the shore and sweep the sea turtles into the water, you can see their tiny black heads bouncing up and down and then diving down under the current.



Baby sea turtles imprint on the sand while they make their way into the ocean

8:00 am – We make it back to the biological station and fill up on some beans and rice, a staple in our diet.

11:00 am – I spot some leaf cutter ants working away carrying their characteristic green pieces of leaves, sometimes as much as three times its weight. One after another, they move along, wearing away the grass and carving unbelievable paths along the forest floor.

12:00 pm – We eat a much-needed delicious meal of rice, beans, salad, banana chips and a glass of fresh lemonade.

1:00 pm – I head out on a trail with Sam to conduct field research on spider monkeys and their “latrine sites.”. We hike for about 40 minutes until we reach a turn in the path under a large tree. Spider monkeys prefer to sleep in trees with interlocking branches near their feeding trees and choose one spot where they all excrete their waste, also known as a “latrine site.” All day, they jump around from tree to tree, snacking on fruit. As a result, we can tell the diet of the spider monkey by going through their waste. The spider monkeys, thus, become primary seed dispersers and the “latrine site” can be identified by many tree saplings growing in one area.



Researchers can determine the diet and ecological role of spider monkeys by examining what grows at the “latrine sites.”

2:00 pm – Our task was to observe the spider monkey poop and notice if ants appeared – which in theory, should attract poison dart frogs. Although field biology can seem repetitive and boring at times, it is extremely rewarding when you find what you’re looking for after patiently waiting. Great to see your work pay off!  As we sit there taking notes, I listen to the sounds around me and start to notice small things in the forest. A dung beetle crawls by, proudly rolling his perfect spherical ball of monkey poop. The beetles are a lot smaller than I had imagined but the impact they have on the forest as secondary seed dispersers is extraordinary!

3:45 pm – A howler monkey starts to howl near us. Sam tells me that howlers howl for only a few reasons: As a “wake-up call,” an “I’m going to sleep” howl, a “territorial” scream, and an “I’m wet and mad about it so I’m going to complain” cry. By this time, the rain had started coming down. We hadn’t felt it much before because the trees had caught most of it. But soon it got darker out and the rain got stronger. so we headed back.

The rest of the evening was composed of relaxing, showering, preparing and eating dinner, and getting to bed early for an early morning. The cold refreshing shower was definitely a highlight of my day along with the fresh pineapple with dinner.


Christmas Bird Count 2017 – Birding in the Osa

Blogpost written by Eleanor Flatt, Restoration and Biodiversity Monitoring Research Field Assistant and Birder.

Black-cheeked ant tanager, endemic to the Osa Peninsula; photo by Manuel Sanchez

Black-cheeked ant tanager, endemic to the Osa Peninsula; photo by Manuel Sanchez

In the 1900’s, the first Audubon Christmas Bird Count was conducted in 25 areas with 27 birdwatchers in the US & Canada. 100 years later, the tradition has expanded to over 2,200 areas in 20 different countries. The Osa Peninsula is one of these locations and this year marked its 8th annual Christmas Bird Count. Data collected from Christmas Bird Counts form long-term bird population studies. These are used by scientists to detect bird declines from habitat disturbances and climate change.


The Christmas Bird Count is a 24-hour event that occurs every year in December/January. In 2017, we were excited to work with partners to coordinate the First Junior Christmas Bird Count highlighted in a previous blog, as well as to continue this traditional Christmas Bird Count with community members of all ages. On Saturday, 16th December, 2017, volunteer citizen scientists headed out at the break of dawn all over the Osa Peninsula to count birds and became part of a long-running tradition. Participants included private landowners, eco-lodges, NGOs, local guides, national parks, and travel companies. Our team was 1 of 16 initiatives participating this year.


Our bird count team was up before the sun, beginning the birding at 5am. The team split into groups to survey several habitat types; primary forest, secondary forest, plantation forest, swamp, restored wetland, and abandoned pastureland. This was to ensure we captured a result that reflected the diverse bird fauna in the Osa Peninsula, a global biodiversity hotspot. Birding continued throughout the day until the evening, with all teams finishing at the rock pools to watch the sun settle over the ocean.

Our team walked a total of 30km, actively birded for a total of 12hrs and recorded a total of 142 bird species! This included the Golden-Winged warbler that was featured wearing a Christmas hat for the Christmas Bird Count 2017 logo. We recorded endemic species such as the black-cheeked ant tanager. Also, a spectacular sighting of the white-tailed kite! This data all goes towards valuable birding databases, like Cornell’s eBird, which has designated Osa Conservation’s properties as an official birding hotspot.


We want to thank all the Osa Conservation’s volunteers, staff, friends and families that joined us to make this day successful. We wonder how many species we will get next year.