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Wildlife of Toshima Island

The Japanese White-Eye

Wild birds, such as the Japanese white-eye, fly throughout Toshima Island in the winter when the island's camellias are in bloom. Birds from mountain and northern areas migrate to warmer regions in the winter. The Japanese white-eye has a greenish-brown body and white rings around the eyes. They gather in persimmon trees to feed on the ripe fruit in the autumn and draw nectar from camellia, plum blossoms, cherry blossoms, and other flowers in the spring.

The Japanese white-eye

The Streaked Shearwater

The southern end of Toshima Island is the breeding ground of a wild bird called the streaked shearwater. The streaked shearwater's nesting period lasts from March to November. Females lay their eggs around July, and the female and male take turns sitting on the eggs to keep them warm. These summer-breeding birds are known as matori on the island. Although these birds appear agile when then are flying or gliding above the ocean, they are clumsy on land. At night, drivers on the island's mountain roads risk running over matori, which sit on the road at night. The birds have a very distinctive voice.

The streaked shearwater

Stag Beetles

Toshima Island’s sawtooth stag beetle (Prosopocoilus inclinatus) is the nominotypical subspecies of the stag beetles that originated on Izu Oshima. The stag beetles found on Niijima Island, Shikinejima Island, Kozushima Island, and Miyakejima Island are considered to be Prosopocoilus inclinatus miyakejimaensis, a subspecies native to the southern Izu Islands. However, the stag beetle species found on Toshima Island, the midpoint of these islands, is the nominotypical subspecies. Stag beetles are often found crawling on the ground on Toshima Island.


Green Turtle

In the ocean around Toshima Island, you can witness wonderful sights such as swimming green turtles, sharks, swarms of Takabe (Yellowstriped butterfish) and Isaki (striped pigfish) swimming with dolphines or scuba diving. Unlike dolphins, green turtles swim underwater, so it is difficult to find and if you can see one, you are lucky. Unlike other turtles, it is a herbivorous that eats seaweed to lives.

Green sea turtle


The ocean around the island is home to the Indo-Pacific bottlenose dolphin, and visitors can swim with the dolphins. In November 2014, 20 dolphins were identified near the island. Although around 100 dolphins live near the nearby Mikurashima Island, people say it is easier to find dolphins in the waters off Toshima Island because the island is so small. Like Mikurashima Island, the chance of encountering a dolphin near Toshima Island is almost 100%.



Because 80% of the land on the island is covered with evergreen camellia trees, visitors can enjoy lush, green scenery all year round. Although camellias bloom in the winter, the trees bear their oil-filled fruit from early summer to autumn. When the camellia trees drop their fruit in the autumn, farmers gather them carefully and dry them under the eaves of their homes. The dried fruit is then taken to factories for processing in various steps that yield camellia oil in the spring. The creation of a great landscape of terraced camellia forests was the idea of farmers from generations ago as a way to prevent the camellia fruit from being washed away by the rain.
(C)Toshima Mura Yakuba


Lillium Maculatum

It is a perennial that grows from 20 to 60 cm (7.8 to 23.6 inches) and is also known as Sukashi Lily. It grows naturally in coastal rocky areas, cliffs, sandy areas and mountains. To withstand strong winds on the coast, the length of the stem is a bit short;about 30 cm(11.9 inches) with a few flowers attach to the tip of the stem. The best time to see them is from June to July. The flower color is similar to Lilium lancifolium, but its flowers bloom upwards. The name sukashi was given because there is a gaps between the petals. In Toshima Island, beautiful flowers bloom in grasslands and rocks all along the ocean.

Lilium maculatum

Lilium auratum var. platyphyllum

Lilium auratum var. platyphyllum, which is said to be the largest lily in the world, blooms in many areas of the island in the rainy season from around June to July. Lilium auratum var. platyphyllum is one of the parent species of the hybrid Casablanca lily. The large plants grow to a height of over 2 meters (6.5 feet), and the flowers become as large as 30 centimeters (almost 1 foot) in diameter. Most of the Lilium auratum var. platyphyllum originate in a lily species that grows wild on Toshima Island. The wild-growing lily was then turned into a garden species and bred multiple times to create a new breed named Lilium auratum var. platyphyllum shin toshima. Fields of Lilium auratum var. platyphyllum and camellias stretch to the east and west from a community above Toshima Port. The walking path around this area is called the Sakuyuri & Tsubaki Observation Road. The elegant aroma of the flowers fills the mountain air.
(C)Toshima Mura Yakuba

Lilium auratum var. platyphyllum

Mycena lux-coeli

Mycena lux-coeli, a glowing mushroom, is sometimes seen in the mountains at night when humidity levels are high during the rainy season, from June to the early summer. Before you go searching for the mushroom during this season, make sure that you have insect repellent and lights on hand. Be warned that Mycena lux-coeli is not edible. The cap of the mushroom is only about 2 centimeters (0.8 inches) in diameter. This tiny specimen is hard to find, but you will surely appreciate its beauty.

Mycena lux-coeli


このページの担当は自然環境部 緑環境課 自然公園計画担当です。

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