Izu thrush
The Izu thrush or Izu Islands thrush is a bird of the thrush family native to Japan.
Behavior
Feeding
Izu thrushes eat small animals, such as earthworms and insects, and fruits, like cherries or mullberries.Breeding
The Izu Thrush's breeding season is March to July. During the first half of this season, the male will sing at dawn, but will, during the second half, sing throughout the day. One source described their song as 'kyurrr, chotts' and their call as 'tweet' or 'chat, chat, chat". They build their nests in trees about half a metre from the ground. They use soil to bind the materials, such as grass and moss, together. While the clutch can have as many as five or as few as two eggs, most clutches are of three to four eggs. The eggs are blue with brown spots and are roughly long. Both parents look after the chicks.Predation of nests
Since the introduction of weasels, the fledgling rate has significantly decreased.Description
The Izu thrush is about long. Their back and tails are black and they have a yellow eye-ring and bill, brown wings, and a rust-red chest. The males have darker plumage than that of the females.Distribution
The Izu thrush is an endemic bird of Japan.Most are on the Izu Islands. On Izu Ōshima, Miyakejima and Mikurajima they sing two syllables. The song of the population of Hachijojima south sounds entirely different with one syllable. On their last island of the chain Aogashima they have more syllables.
Some less densely populated are on the Tokara Islands Yakushima, Kuchinoshima, Nakanoshima, Tairajima, Akusekijima and Takarajima. On Nakanoshima the song is composed of more syllables. In addition, there are wintering records from Shizuoka, Chiba, Mie and Wakayama Prefectures.