Frogs of Okinawa by Shawn Miller

Posted on June 23, 2019 by Admin11

Individuals that study amphibians are know as herpetologists. The act of searching for these beautiful animals is known as herping. Okinawa has twelve species of frogs. They all have the ability to live in the water and on the land. Most are nocturnal and feed on insects during the night. They are found in local parks, forests, streams, puddles, and on the road at times.

If you would like to learn more about a specific frog, I attached a link above each photograph. Links in red are endangered species.

Rana ulma – Ryukyu brown frog

Babina holsti – Holsts frog

Odorrana ishikawae – Ishikawa’s frog

Limnonectes namiyei – Namie’s frog

Hyla halowelii – Hallowell’s tree frog

Odorrana narina – Ryukyu Tip-nosed Frog

Rhacophorus viridis viridis – Okinawa green tree frog

Rana limnocharis limnocharis – Asian grass frog

Polypedates leucomystax leucomystax – White jawed frog

Microhyla okinavensis – The Ornate narrow-mouth frog

Buegeria japonica – Ryukyu Kajika frog

Rana catesbeiana – American bullfrog

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines.

Thank you for your support. Shawn M Miller.

Ryukyu Brown Frog – Amphibians of Okinawa by Shawn Miller

Posted on December 17, 2017 by Admin11

The Ryukyu Brown frog (Rana ulma) is found throughout the Ryukyu Islands. It is listed as an endangered species on the IUCN list of threatened species. Some of the most beautiful frogs are found on Kume Island.

Scientific name: Rana ulma – Synonym Babina okinavana
Common name: Ryukyu Brown Frog
Distribution: Ryukyu Islands
Habitat: Forests, mountain slopes, drainage ditches, and farm fields.
Diet: Insects
Average size: 45mm-65mm
Color: brownThe Ryukyu Brown Frog is found in northern Okinawa. The Yanbaru forest is a wildlife protected area.

Wildlife protection area -Yanbaru forest © Shawn Miller

They blend in very well with the leaf litter, rocks, and the surrounding grass.

(Rana ulma) Ryukyu brown frog © Shawn Miller

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Amami brown frog (Rana Kobai)

Rana kobi- Tokuno Island © Shawn Miller

Mating season is during the winter months.

Ryukyu Brown frog mating -Kume, Island © Shawn Miller

A wide-angle perspective of the small brown frog.

Rana ulma – Wide angle macro © Shawn Miller

Pay attention to crossing wildlife. Frogs are often found on the road searching for insects

Bright Orange Rana ulma © Shawn Miller

Rana ulma – crossing the road © Shawn Miller

People often ask me what is the purpose of conservation photography? Having the ability to affect some form of positive change in the environment and make a global difference with the photographs. Hopefully, the images will inspire people to care more about nature and make a positive difference in the environment.

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support. Shawn M Miller.

The Hallowell’s tree frog – Okinawa

Posted on April 2, 2017 by Admin11

The Hallowell’s tree frog ( Hyla hallowellii ) is found on Okinawa, Amami and Tokunoshima Island.

Scientific name: Hyla hallowellii
Common name: Hallowell’s tree frog
Distribution: Ryukyu Islands
Habitat: Forests, grassy areas and farm fields near water.
Diet: Insects
Average size: 30mm-40mm
Color: Bright green with a white belly

The Hallowell’s tree frog is fairly common but not often seen. The beautiful frog lives high above the ground in trees making it difficult to find and photograph.

The Hallowell’s tree frog

They are easy to locate during mating season. The male produces a fairly high pitch squeak sound over and over.

The Hallowell’s tree frog -vocal sac

The Hallowell’s tree frog -mating call

The Hallowell’s tree frog

Let’s protect the wildlife of the Ryukyu Islands.

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support. Shawn M Miller.

Ryukyu Kajika frog – Amphibians of the Ryukyu Islands

Posted on February 27, 2017 by Admin11

The Ryukyu Kajika frog ( Buergeria japonica ) is found throughout the Ryukyu Islands. It is the most common frog found on Okinawa.

Scientific name: Buergeria japonica
Common name: Ryukyu Kajika frog
Distribution: Ryukyu Islands
Habitat: Forests, mountain slopes, drainage ditches and farm fields.
Diet: Small Insects
Average size: 25mm-40mm
Color: Olive green, brown and golden yellow

This small frog is a master of camouflage. I often find it on rocks, plants, trees, drainage ditches and even our trash.

Ryukyu Kajika frog on tatami mat

Ryukyu Kajika frog -macro

Ryukyu Kajika frog – Kume Island

Ryukyu Kajika frog

Ryukyu Kajika frog- manhole cover

This is the only frog on Okinawa that is capable of living on the shoreline next to the ocean. I have photographed them as close as five feet away from the saltwater.

Ryukyu Kajika frog- skin discoloration

Beach-dwelling Kajika frog

A beautiful Kajika frog in the jungles of Iriomote Island.

Kajika frog -Iriomote Island

Photographed on white for the Meet Your Neighbours Project

Ryukyu Kajika frog – MYN

The males turn a golden yellow during mating season. The season stretches from April to September on Okinawa.

Ryukyu Kajika frog – Amami Island

Ryukyu Kajika frog – mating

Ryukyu Kajika frog – drainage ditch

The eggs are laid in slow-moving and still water sources. The eggs will develop into tadpoles and eventually transform into baby frogs. I often find tadpoles thriving in farming water buckets.

Juvenile Kajika frog

The summer months provide a great opportunity for natural predators.The frogs come together in large numbers.

Crab feeding on frogs

Pryer’s keelback feeding

Never give up

Never give up -Okinawa, Japan

If you see frogs, there is a possibility that snakes are nearby. The snakes patiently wait for frogs in drainage ditches and still water sources. The Kajika frog is the Hime habu’s favourite meal.

Hime habu – GoPro

Have a great day!

Okinawan Sword-tailed newt – Endangered species by Shawn Miller

Posted on October 5, 2016 by Admin11

The Okinawan Sword-tailed newt (Cynops ensicauda popei) is an endangered species found on the main islands of Okinawa an Amami. It is currently listed as endangered on the IUCN red list of threatened species. This amphibian is decreasing in numbers due to deforestation and road kill.

Scientific name: Cynops ensicauda popei
Distribution: Okinawa and Anami Islands
Habitat: Forests, wetlands and freshwater streams
Diet: Amphibian eggs, tadpoles, snails, worms and insects
Average size: 100-180mm

Sword tailed newt with stripes

They all have bright orange bellies, which serve as a warning sign to predators that they are poisonous. When threatened they produce a transparent skin toxin.

Poisonous animals are toxic if you eat them or ingest their secretions. Irritations may occur after handling these newts if you have open wounds. Avoid rubbing your eyes or placing your hands in your mouth.

The newt photographed in its natural habitat.

Sword-tailed newt in natural habitat

The aquatic stage of the newt has external gills. Photographed on Amami Island

Juvenile Cynops ensicauda ensicauda -Amami Island

Sword tailed newt -Onna village

Sword tailed newt – Onna village

Sword tailed newt -yanbaru forest

An average looking sword-tailed newt with a blood sucking leech

Sword-tailed newt with leech

The Sword- tailed newt is often found crossing the road on rainy days in northern Okinawa.

Newt crossing

The government has designed specialized wildlife steps for animals that get trapped in roadside drainage ditches. These steps allow the newts to crawl out safely.

Wildlife steps

Please pay attention to crossing wildlife

Road kill- Sword tailed newt Sword tailed newt

If you like newts, you have to check out the coolest newt on the planet, Anderson’s crocodile newt.

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support. Shawn M Miller.

The Light & Motion Stella 2000 rocks part 1 – Okinawa, Japan

Posted on September 5, 2016 by Admin11

The Stella 2000 offers lightweight professional lighting for photographers and videographers. It delivers 2000 lumens of beautiful wide light on high power. It is waterproof to a depth of 100 meters and extremely durable.

Stella 2000 waterproof lighting © Shawn Miller

My favorite features of the Stella 2000

Waterproof to 100 meters
Can be mounted on the camera hot-shoe, light stand, loc-line arms or ball mounts.
Quick adjustable power output control
Fast charging and the ability to use the light when it’s charging

I tested the Stella 2000 in the humid jungle and on the shorelines of northern Okinawa. I used it as a spotting light, hiking light, camera modeling light and video light. I tested the light with the 120-beam angle with no modifiers, with custom-made soft-boxes attached, studio umbrellas and with the combination of on-off camera flash.

I concentrated on the reptiles, amphibians and land crabs of northern Okinawa. Below are some of my favorite photographs.

Shawn Miller – Crabs with beach trash homes. photographed by David Orr

Okinawa green tree frog -Stella 2000 diffused on hotshoe

Holst's frog (endangered) Stella 2000 bare with back lighting from headlights

Ryukyu Tip nosed frog ( Endangered ) Stella 2000 diffused through an umbrella

Ishikawa's frog (endangered) Stella 2000 diffused with fill flash

Princess habu - Diffused through an umbrella

Kuroiwa's ground gecko (Endangered) Stella 2000 with fill flash

IHallowell's tree frog -Stella 2000 with fill flash

Pryer's keelback feeding on a white jawed frog

No need to worry about dropping the light in the salt water or placing it on the sand. The Stella 2000 is extremely durable.

Ghost crab - Fill flash and back-lighting Stella 200

Crabs with trash homes -Stella 2000 and fill flash

Making the journey (Geograpsus grayi) Stella 2000 with fill flash

Hermit crab and plastic- Stella 2000 with fill flash

Ghost crab feeding- Stella 2000 with fill flash

yukyu kajika frog Stella 2000 and fill flash

Solid as a rock- Stella 2000

Friends and supporters – Save 20% off your first Light & Motion purchase https://prz.io/648x6bGC1

I have been using Light & Motion lights for over four years now and they keep getting better! Stayed tuned for testing the Stella 2000 underwater !

Ryukyu tip-nosed frog (Odorrana narina) – Frogs of Okinawa

Posted on May 17, 2016 by Admin11

The Ryukyu tip-nosed frog ( Odorrana narina) is found in Northern Okinawa. This endemic frog is currently listed endangered on the IUCN red list. It’s biggest threat is habitat loss.

Scientific name: Odorrana narina
Common name: Ryukyu tip-nosed frog
Distribution: Yanbaru forest, Northern Okinawa
Habitat: Forest streams and mountain slopes
Diet: Insects, centipedes and small invertebrates
Average size: 50mm – 75mm

Ryukyu tip-nosed frog – Stella 2000

The Ryukyu tip-nosed frog is a medium sized frog. It hides in holes and crevices in the daytime.

Ryukyu tip-nosed frog – Tokina 10-17mm

Ryukyu tip-nosed frog

Odorrana narina – frogs of Okinawa

It feeds during the night on small insects and centipedes.

Ryukyu tip-nosed frog -wide angle macro, Stella 2000

It is sometimes found on roads searching for food after heavy rains.

Ryukyu Tip-nosed frog -Red list

Be careful and pay close attention to crossing wildlife.

Crossing wildlife- wide angle macro

Road kill- Ryukyu Tip-nosed frog

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support. Shawn M Miller.

Okinawa Nature Photography

沖縄自然写真 By Shawn Miller

Tag Archives: Amphibians of Yanbaru forest

Frogs of Okinawa by Shawn Miller

Ryukyu Brown Frog – Amphibians of Okinawa by Shawn Miller

The Hallowell’s tree frog – Okinawa

Ryukyu Kajika frog – Amphibians of the Ryukyu Islands

Okinawan Sword-tailed newt – Endangered species by Shawn Miller

The Light & Motion Stella 2000 rocks part 1 – Okinawa, Japan

Ryukyu tip-nosed frog (Odorrana narina) – Frogs of Okinawa