Site Report: Corcovado National Park - La Sirena, Costa Rica

Giant Grasshopper

Unidentified Toad

La Sirena Beach

Rio Sirena

Shipwreck near Carate

Pale-billed Woodpecker (Campephilus guatemalensis)

Baird's Tapir (Tapirus bairdii)

White-lipped Peccary (Tayassu pecari)

Band-tailed Barbthroat (Threnetes ruckeri)

Common Black-Hawk (Buteogallus anthracinus)

Great Blue Heron (Ardea herodias)

Graceful Black-throated Trogon (Trogon tenellus)

Wilson's Plover (Charadrius wilsonia)

Common Black-Hawk (Buteogallus anthracinus)

Chestnut-backed Antbird (Poliocrania exsul)

Black-cheeked Ant-Tanager (Habia atrimaxillaris) - Male

White-throated Shrike-Tanager (Lanio leucothorax) - Male

White-throated Shrike-Tanager (Lanio leucothorax) - Female

Great Tinamou (Tinamus major)

Rainforest Rocket Frog (Silverstoneia flotator)

Three-wattled Bellbird (Procnias tricarunculata)

Great Curassow (Crax rubra)

Roadside Hawk (Rupornis magnirostris)

White-nosed Coati (Nasua narica)

Semi-terrestrial Hermit Crab (Coenobita compressus)

Rufous Mourner (Rhytipterna holerythra)

Riverside Wren (Thryothorus semibadius)

Black-hooded Antshrike (Thamnophilus bridgesi) - Female

Great Tinamou (Tinamus major)

Black-hooded Antshrike (Thamnophilus bridgesi) - Male

Crested Owl (Lophostrix cristata)

Blue-black Grosbeak (Cyanoloxia cyanoides) - Female

Blue Ground-Dove (Claravis pretiosa)

Black-striped Woodcreeper (Xiphorhynchus lachrymosus)

Black-hooded Antshrike (Thamnophilus bridgesi) - Male

Scarlet Macaw (Ara macao)

Scarlet Macaw (Ara macao)

White-shouldered Tanager (Tachyphonus luctuosus) - Male

White-shouldered Tanager (Tachyphonus luctuosus) - Female

Great Curassow (Crax rubra) - Female

Northern Plain Xenops (Xenops mexicanus)

Scaly-throated Leaftosser (Sclerurus guatemalensis)

Rufous Mourner (Rhytipterna holerythra)

Charming Hummingbird (Amazilia decora)

Ruddy Quail-Dove (Geotrygon montana)













































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Giant Grasshopper

Unidentified Toad

La Sirena Beach

Rio Sirena

Shipwreck near Carate

Pale-billed Woodpecker (Campephilus guatemalensis)

Baird's Tapir (Tapirus bairdii)

White-lipped Peccary (Tayassu pecari)

Band-tailed Barbthroat (Threnetes ruckeri)

Common Black-Hawk (Buteogallus anthracinus)

Great Blue Heron (Ardea herodias)

Graceful Black-throated Trogon (Trogon tenellus)

Wilson's Plover (Charadrius wilsonia)

Common Black-Hawk (Buteogallus anthracinus)

Chestnut-backed Antbird (Poliocrania exsul)

Black-cheeked Ant-Tanager (Habia atrimaxillaris) - Male

White-throated Shrike-Tanager (Lanio leucothorax) - Male

White-throated Shrike-Tanager (Lanio leucothorax) - Female

Great Tinamou (Tinamus major)

Rainforest Rocket Frog (Silverstoneia flotator)

Three-wattled Bellbird (Procnias tricarunculata)

Great Curassow (Crax rubra)

Roadside Hawk (Rupornis magnirostris)

White-nosed Coati (Nasua narica)

Semi-terrestrial Hermit Crab (Coenobita compressus)

Rufous Mourner (Rhytipterna holerythra)

Riverside Wren (Thryothorus semibadius)

Black-hooded Antshrike (Thamnophilus bridgesi) - Female

Great Tinamou (Tinamus major)

Black-hooded Antshrike (Thamnophilus bridgesi) - Male

Crested Owl (Lophostrix cristata)

Blue-black Grosbeak (Cyanoloxia cyanoides) - Female

Blue Ground-Dove (Claravis pretiosa)

Black-striped Woodcreeper (Xiphorhynchus lachrymosus)

Black-hooded Antshrike (Thamnophilus bridgesi) - Male

Scarlet Macaw (Ara macao)

Scarlet Macaw (Ara macao)

White-shouldered Tanager (Tachyphonus luctuosus) - Male

White-shouldered Tanager (Tachyphonus luctuosus) - Female

Great Curassow (Crax rubra) - Female

Northern Plain Xenops (Xenops mexicanus)

Scaly-throated Leaftosser (Sclerurus guatemalensis)

Rufous Mourner (Rhytipterna holerythra)

Charming Hummingbird (Amazilia decora)

Ruddy Quail-Dove (Geotrygon montana)
La Sirena is an airstrip and biological station deep within the Corcovado National Park. There are dorms, a small camping area, and meals by reservation. The camp is only a few minutes walk from a vast wild beach with tide pools.
Visits
- 2009-02-25: After a night at Los Patos and a breakfast of crackers, we started the arduous hike across the peninsula to La Sirena. Fortunately, the hike was mostly shaded or we might have died from exertion. We stopped to swim in every crocodile infested river that we could find! By the end of the day, I had drunk over a gallon of water. We barely arrived in La Sirena in time for dinner. This species list includes the hike from Los Patos in addition to a full day spent at the La Sirena station.
Species Seen
Kingdom: Animals (93 records)
Phylum: Arthropods
(1 record)
Class: Malacostracans
(1 record)
- Order: Crabs
(1 record)
- Family: Hermit Crabs
- Semi-terrestrial Hermit Crab (Coenobita compressus)
Phylum: Chordates
(92 records)
Class: Amphibians
(1 record)
- Order: Toads and Frogs
(1 record)
- Family: Poison Dart Frogs
- Rainforest Rocket Frog (Silverstoneia flotator)
Class: Birds
(85 records)
- Order: Doves and Pigeons (3 records)
- Order: Hawks, Eagles, Kites, and Allies
(4 records)
- Family: Hawks, Eagles, and Kites
- Broad-winged Hawk (Buteo platypterus)
- Common Black Hawk (Buteogallus anthracinus)
- Roadside Hawk (Rupornis magnirostris)
- Family: Osprey
- Osprey (Pandion haliaetus)
- Order: Hummingbirds and Swifts (6 records)
- Family: Swifts
- Gray-rumped Swift (Chaetura cinereiventris)
- Order: Kingfishers, Bee-eaters, Motmots (3 records)
- Family: Motmots
- Lesson's Motmot (Momotus lessonii)
- Order: Owls And Nightjars
(2 records)
- Family: Nighthawks and Nightjars
- Common Pauraque (Nyctidromus albicollis)
- Family: Typical Owls
- Crested Owl (Lophostrix cristata)
- Order: Parrots
(2 records)
- Family: New World Parrots
- Scarlet Macaw (Ara macao)
- White-crowned Parrot (Pionus senilis)
- Order: Pelicans
(13 records)
- Family: Cormorants
- Neotropic Cormorant (Nannopterum brasilianum)
- Family: Herons
- Bare-throated Tiger-Heron (Tigrisoma mexicanum)
- Great Blue Heron (Ardea herodias)
- Little Blue Heron (Egretta caerulea)
- Snowy Egret (Egretta thula)
- Tricolored Heron (Egretta tricolor)
- Western Cattle-Egret (Ardea ibis)
- Family: Pelicans
- Brown Pelican (Pelecanus occidentalis)
- Family: Sandpipers and Allies
- Hudsonian Whimbrel (Numenius hudsonicus)
- Least Sandpiper (Calidris minutilla)
- Ruddy Turnstone (Arenaria interpres)
- Spotted Sandpiper (Actitis macularius)
- Wandering Tattler (Tringa incana)
- Order: Perching Birds
(40 records)
- Family: American Blackbirds and Orioles
- Scarlet-rumped Cacique (Cacicus uropygialis)
- Family: Antthrushes
- Black-faced Antthrush (Formicarius analis)
- Family: Bananaquit
- Bananaquit (Coereba flaveola)
- Family: Cardinals and Allies
- Blue-black Grosbeak (Cyanoloxia cyanoides)
- Family: Gnatwrens
- White-browed Gnatcatcher (Polioptila bilineata)
- Family: New World Warblers
- Chestnut-sided Warbler (Setophaga pensylvanica)
- Northern Waterthrush (Parkesia noveboracensis)
- Family: Old World Buntings
- Black-striped Sparrow (Arremonops conirostris)
- Family: Ovenbirds and Woodcreepers
- Black-striped Woodcreeper (Xiphorhynchus lachrymosus)
- Cocoa Woodcreeper (Xiphorhynchus susurrans)
- Northern Plain-Xenops (Xenops mexicanus)
- Piping Long-tailed Woodcreeper (Deconychura typica)
- Ruddy Woodcreeper (Dendrocincla homochroa)
- Scaly-throated Leaftosser (Sclerurus guatemalensis)
- Streak-headed Woodcreeper (Lepidocolaptes souleyetii)
- Tawny-winged Woodcreeper (Dendrocincla anabatina)
- Family: Tanagers and Allies
- Black-cheeked Ant-Tanager (Driophlox atrimaxillaris)
- Blue-gray Tanager (Thraupis episcopus)
- Gray-headed Tanager (Eucometis penicillata)
- Red-legged Honeycreeper (Cyanerpes cyaneus)
- Summer Tanager (Piranga rubra)
- White-lined Tanager (Tachyphonus rufus)
- White-shouldered Tanager (Loriotus luctuosus)
- White-throated Shrike-Tanager (Lanio leucothorax)
- Family: Tityras and Allies
- Masked Tityra (Tityra semifasciata)
- Family: Typical Antbirds
- Black-hooded Antshrike (Thamnophilus bridgesi)
- Chestnut-backed Antbird (Poliocrania exsul)
- Dusky Antbird (Cercomacroides tyrannina)
- Family: Tyrant Flycatchers
- Boat-billed Flycatcher (Megarynchus pitangua)
- Bright-rumped Attila (Attila spadiceus)
- Gray-capped Flycatcher (Myiozetetes granadensis)
- Northern Bentbill (Oncostoma cinereigulare)
- Rufous Mourner (Rhytipterna holerythra)
- Slate-headed Tody-Flycatcher (Poecilotriccus sylvia)
- Sulphur-rumped Flycatcher (Myiobius sulphureipygius)
- Yellow-crowned Tyrannulet (Tyrannulus elatus)
- Order: Shorebirds and Allies
(3 records)
- Family: Gulls, Terns, and Skimmers
- Laughing Gull (Leucophaeus atricilla)
- Order: Tinamiformes
(2 records)
- Family: Tinamous
- Great Tinamou (Tinamus major)
- Little Tinamou (Crypturellus soui)
- Order: Trogons
(1 record)
- Family: Trogons
- Graceful Black-throated Trogon (Trogon tenellus)
- Order: Turkey-like birds
(2 records)
- Family: Chachalacas, Guans, and Curassows
- Great Curassow (Crax rubra)
- Family: New World Quail
- Marbled Wood-Quail (Odontophorus gujanensis)
- Order: Vultures
(2 records)
- Family: New World Vultures
- Black Vulture (Coragyps atratus)
- Turkey Vulture (Cathartes aura)
- Order: Woodpeckers, Barbets, Toucans, and Honeyguides
(2 records)
- Family: Piculets and Woodpeckers
- Lineated Woodpecker (Dryocopus lineatus)
- Pale-billed Woodpecker (Campephilus guatemalensis)
Class: Mammals
(5 records)
- Order: Carnivorans
(2 records)
- Family: Mustelids
- Northern Neotropical River Otter (Lontra annectens)
- Family: Procyonidae
- White-nosed Coati (Nasua narica)
- Order: Even-toed Ungalates and Cetacean
(1 record)
- Family: Tayassuidae
- White-lipped Peccary (Tayassu pecari)
- Order: Perissodactyla
(1 record)
- Family: Tapiridae
- Baird's tapir (Tapirus bairdii)
- Order: Primates
(1 record)
- Family: Cebidae
- Central American Spider Monkey (Ateles geoffroyi)
Class: Reptiles
(1 record)
- Order: Alligators and Crocodiles
(1 record)
- Family: Crocodiles
- American Crocodile (Crocodylus acutus)