Tyto longimembris

2022-10-31 00:55:35 165

Name：Tyto longimembris

Alias：Tyto longimembris,Eastern Grass-owl, Monkey-faced owl, Monkey eagle, White-breasted grass owl

Outline：Bird of prey

Family：Strigiformes Owlidae Owl

length：About 32 cm

Weight：About 450g

Life：About 10-15 years

IUCN：LC

Trait：The face is heart-shaped, similar to a barn owl, but the face and chest are very dark yellow, and the upper body is dark brown.

Tyto longimembris Life habits and morphological characteristics

Length: 32 cm, wingspan: 116 cm, weight: 450 g. Upper body: dark brown, with brownish-yellow markings, small white spots near the feather tips. Similar to a barn owl, with a gray-brown, heart-shaped face with dark chestnut edges. Flight feathers: yellowish-brown, with dark brown horizontal stripes; tail feathers: light yellow chestnut, with four dark brown horizontal stripes; lower body: light brownish-white, with brown spots. Bill: yellowish-brown. Claws: dark brown. Iris: brown; bill: beige; feet: slightly white.

Tyto longimembris Distribution range and habitat

The barn owl is distributed in Australia, China, Fiji, India, Indonesia, Myanmar, Nepal, New Caledonia, Papua New Guinea, the Philippines, Japan, and Vietnam.
Extinct in: Bangladesh, Fiji. Migrant bird: Hong Kong, China, Japan.
Anhui (Tunxi), Zhejiang (Wenling), Jiangxi (Taihe, Xiajiang), Hunan, Fujian, Taiwan, Guangdong, Guangxi, Guizhou, and Yunnan, China.
It lives in the grass and shrubs at the foot of the mountain, and often moves in dense tropical grasslands, swamps, especially sugarcane fields beside reed marshes, hiding in the tall grass on the ground. Sometimes it also perches on the fragile branches at the top of young pines.

Tyto longimembris Detailed Introduction

The Eastern Grass-owl is a medium-sized bird of prey with 6 subspecies.

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The Grass-owl lives in the grass and shrubs at the foot of the mountain and feeds on rodents, frogs, snakes, bird eggs, etc. Its call is loud and piercing. During the day, the grass owl hides in the woods to recharge its batteries, but is very active at night. The grass owl's body structure and functions are adapted to catching mice at night. First, the density of cones in the grass owl's eyes is eight times that of human eyes. In addition, the pupil of the grass owl's eyes is large and has strong light sensitivity, so the grass owl can see the mice moving in the dark. Second, the grass owl has a pair of large ears with extremely strong hearing. Whether flying in the air or "waiting for mice" on the branches, the faint sounds made by mice when they move on the ground can be heard clearly. Third, the grass owl's head can rotate 270 degrees freely, which expands the "scanning and detection" range of the visual and auditory organs. Fourth, the feathers on the grass owl's body, especially the feathers on the wings, are particularly soft and fluffy. It is silent when flying, and can catch mice by surprise. In addition, it has hook-like claws and sharp beaks, so it is always successful in catching mice.

The grass owl is ferocious and brutal. After catching a mouse, it will swallow the whole head of a small one, and will peck at the head of a large mouse first, then tear its body. Even if it is full, it will not let go of the mouse. Generally speaking, if there are many mice in a certain area, the grass owls in that area will lay more eggs per nest, and vice versa, they will lay fewer eggs. They are very good at "family planning".

If conditions are favorable, the grass owl can breed at any time of the year. However, in the northern coastal areas of Australia, it usually chooses to lay eggs between March and June. The nest is placed on the ground, hidden in dense grass or reeds, and 3 to 8 eggs are laid in each nest, which are milky white. The size of the egg is about 40 mm × 30 mm, and the incubation time is about 42 days, which is roughly the same as the incubation time of the African owl. The chicks have white down that turns golden yellow before turning into adult feathers. The chicks leave the nest to fend for themselves after two months, and the mother continues to feed them. The chicks wander among the tall grass, and at night they return to the nest to get food. When they finally leave the nest, they will change into slightly darker feathers that cannot be distinguished from adult females.

On February 23, 2020, police officers from the Liuheng Public Security Bureau in Putuo District, Zhoushan City, Zhejiang Province, promptly rescued a grass owl.

Listed in the CITES Endangered Level of the Washington Convention: Appendix II Effective Year: 1997

Listed in the IUCN Red List of Threatened Species in 2016 ver3.1-Least Concern (LC).

Listed in the China National Key Protected Wildlife List (2021) Level II.

Protect wildlife and eliminate game.

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