Birding Palo Verde & the Tempisque, Guanacaste, Costa Rica
The lower Río Tempisque, on the edge of Palo Verde National Park: a boat through the mangroves of Cipancí at first light, then the marsh of Hacienda El Viejo on foot.
Our wetland birding in Guanacaste, Costa Rica follows the lower Río Tempisque, on the edge of Palo Verde National Park. We start by boat from Bolsón, in the Cipancí Wildlife Refuge, where the Boat-billed Heron is on 72% of eBird checklists, then walk the marsh of Hacienda El Viejo, with 274 species recorded. There the Jabiru is on 38% of checklists, and on 50% in February. The best months are December to February.
One River,
Three Wetlands
The lower Río Tempisque is lined by protected wetlands that hold more than 60 species of waterbirds. Palo Verde National Park, a Ramsar wetland since 1991, lies between the Tempisque and the Bebedero rivers. Downstream, the Cipancí Wildlife Refuge, created in 2001, protects about 3,500 hectares of mangrove and river channel where the Tempisque meets the Bebedero. And Hacienda El Viejo, a privately owned national wildlife refuge of about 1,100 hectares on the edge of Palo Verde National Park, keeps seasonal wetlands. We bird the river first, while the herons are still in the mangroves, and finish on foot at the marsh. Palo Verde also hosts a Festival de las Aves; its ninth edition was held on 28 February 2026.
Protected wetlands that hold more than 60 species of waterbirds.
The Tempisque wetlands, in one look
| Where | The lower Río Tempisque, inland from the Guanacaste, Costa Rica coast |
|---|---|
| Pickup | Timed so you reach the boat at Bolsón between 6:30 and 7:00; leave about 1 hour 20 minutes before, from any of the beach hotels or from Liberia |
| Route | A boat from Bolsón, in the Cipancí Wildlife Refuge, then the marsh of Hacienda El Viejo on foot |
| Protection | Palo Verde National Park (Ramsar wetland since 1991) · Cipancí Wildlife Refuge (2001, about 3,500 ha) · Hacienda El Viejo, a private national wildlife refuge (about 1,100 ha) |
| Habitat | River, mangrove, seasonal marsh and gallery forest |
| Birds on eBird | Hacienda El Viejo: 274 species on 1,051 checklists · Cipancí, Bolsón: 201 on 359 · Cipancí, Puente Amistad: 257 on 451 · Palo Verde OTS station: 336 on 2,210 |
| Best months | December to February, when the marsh is shrinking and waterbirds gather on the remaining water |
| eBird hotspots | Hacienda El Viejo Wetlands · RNVS Cipancí, Bolsón |
Figures are the share of complete eBird checklists that report each species at that hotspot. Source: eBird, Cornell Lab of Ornithology, read October 2026.
Which month is best for the Tempisque wetlands?
December to February, early in the dry season, when the marsh of Hacienda El Viejo is shrinking and the waterbirds gather on the water that is left, as these eBird figures show.
Tap a bird to see its months
Jabiru: best in February, on 50% of checklists.
See all the numbers as a table
| Bird at El Viejo | Dec | Jan | Feb | Mar | Jun | Oct |
|---|---|---|---|---|---|---|
| Jabiru | 38% | 39% | 50% | 43% | 35% | 22% |
| Wood Stork | 80% | 72% | 72% | 55% | 51% | 49% |
| Roseate Spoonbill | 69% | 51% | 29% | 33% | 33% | 23% |
| Glossy Ibis | 64% | 41% | 38% | 30% | 0% | 2% |
| White Ibis | 65% | 71% | 62% | 59% | 27% | 9% |
| Black-necked Stilt | 89% | 84% | 71% | 66% | 31% | 29% |
Share of complete eBird checklists that report each species at the Hacienda El Viejo Wetlands hotspot, by month. Source: eBird, Cornell Lab of Ornithology, read October 2026.
We bird the river first, while the herons are still in the mangroves, and finish on foot at the marsh.
Which birds can you see on the Tempisque?
You will see birds on every visit. What we can’t promise is which ones, so here they are sorted honestly.
On the river · Cipancí
From the boat at Bolsón, most mornings.
In the marsh · El Viejo
On foot, most mornings.
Seasonal, never promised
Best in their month.
If you come for one bird, tell us before the day. The forest has the last word, but we will put you in the right place at the right hour.
Birds of the Tempisque Wetlands
Real photographs from the river at Bolsón and the marsh of Hacienda El Viejo, on the edge of Palo Verde National Park.























Drag or swipe to see more. Photos from the Tempisque wetlands and Hacienda El Viejo, used with permission.
How to bird the Tempisque with us
The usual route: the boat from Bolsón at first light, then the marsh of Hacienda El Viejo, as one private day. To add the rice fields and the mangroves of the Gulf of Papagayo, see our Dry Forest & Wetland birding day.
A day on the Tempisque
The usual rhythm of the day. We adjust it to your hotel, the season and your target birds.
Timed so you reach the boat at Bolsón between 6:30 and 7:00, when the birds are most active. The exact time depends on your hotel.
Through the mangroves and channels of the Cipancí Wildlife Refuge while the herons are still in the trees.

On foot around the marsh, where the Jabiru, the storks and the spoonbills feed, with snacks in the field.

Lunch is included.
If the hours allow, a second birding walk at the marsh or along the river to close the day, then the drive back to your hotel.

What the day includes
Everything is private: your group never joins strangers.
A private naturalist guide specialized in birds, private transportation, the boat on the Tempisque, entrance to Hacienda El Viejo, binoculars and a spotting scope, bottled water, snacks and lunch. Taxes included.
Gratuities.
Light clothes, a hat, sunscreen and insect repellent; a rain jacket from May to November.
Seventy-two hours before your birding day begins, counted from your pickup time and not the day: cancel before that for a full refund.
More birding sites in Guanacaste, Costa Rica
Each site has its own season. See where to bird in Guanacaste, Costa Rica and the best time for birding, month by month.
Rincón de la Vieja
The top eBird hotspot in Guanacaste, Costa Rica: manakins, motmots and magpie-jays below the volcano.
ExploreTapir Valley
Tenorio Rainforest, with the Snowcap on 56% of eBird checklists and three toucans.
ExploreNear Coco & Papagayo
Dry forest close to the Coco and Papagayo hotels, with the Elegant Trogon on 72% of eBird checklists in May.
ExploreBirding the Tempisque,
Guanacaste, Costa Rica
Send Us Your Dates
and Your Target Birds
Tell us when you are coming and which birds you are after. We will tell you honestly what is realistic for your dates and plan the day around it.
Private groups only · Hotel and LIR pickup · Based in Playas del Coco, Guanacaste, Costa Rica




