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What are the common birds in the city?
Common birds in cities are:

1, Thrushcross:

Thrush is a flapping-wing bird and a medium-sized bird. The body length is about 23 cm. The upper body is olive, with black vertical stripes on the top of the head, brown back and white eyes. A narrow stripe is formed along the upper edge and extends backward to the occipital side, forming a clear eyebrow pattern, which is extremely eye-catching.

The lower body is brown, the throat is mixed with black longitudinal stripes on the upper chest, and the middle of the abdomen is gray. The iris is orange or yellow, the upper mouth is orange, the lower mouth is olive yellow, and the tarsal bones and toes are brown or light.

2. Crow:

Crow is the common name of several black birds in the family Cormoraceae. Also known as the old man, his mouth likes singing. It is the largest bird in passeriformes, with a body length of about 50 cm. The whole body or most of the feathers are black, hence the name.

Feathers are mostly black or black and white, with long beaks, some with bright white collars, and Kuroha has a purple-blue metallic luster; Wings are much longer than tails; The mouth, legs and feet are pure black. The distance from the nostril to the forehead is about 1/3 of the length of the mouth. The nose must be straight and reach the middle of the mouth.

3. Woodpecker:

Woodpecker is a famous forest bird. In addition to killing the pests under the bark, the traces of wood chipping can be used as an indicator of forest sanitary logging. They feed on some pests, such as longicorn beetles, brown beetles, winged moths, smelly bedbugs, etc., and can eat about 1500 every day. Because woodpeckers eat a lot and have a wide range of activities, in the forest of 13.3 hectares, if a pair of woodpeckers inhabit, more than 90% of insects can be pecked away in a winter.

4. Black-crowned sparrow:

The black-headed sparrow is a bird of the genus Sparrow. The weight is 24-35g and the body length is 144- 167mm, which is a medium-sized sparrow. During the breeding period, the male bird has black crown lines from the top of his head to the back of his neck, black eye lines and chin, brown eyebrow lines and occipital side, and light gray cheeks.

5. domestic sparrow:

The domestic sparrow is a small bird with a body length of 14- 16 cm. Chestnut red with black longitudinal stripes on the back and yellow longitudinal stripes on both sides; The chin, throat and upper chest are black, the cheeks are white, the rest of the lower body is white, and the wings are white with spots. The difference between a male bird and a tree sparrow is that the crown and tail are covered with gray feathers, there are no black patches on the ears, and there is more black in the throat and upper chest.