Why do sparrows often jump around on the ground, while swallows seldom move in the fields?

Sparrows mainly eat on the ground, so they often jump around; Swallows basically only eat flying insects in the air, so they rarely move in the fields.

Swallows feed in the air. Swallow, with long wings, a tail like an open scissors and a white belly, likes to build a nest with mud in the corner of a house or on the light bulb of a house, so it jumps around in the air looking for food.

Swallow (Latin scientific name: Hirundo rustica), also known as Zhuo Yan, Guanyinyan and Yanidae, is the general name of 74 species of passeriformes. Mainly distributed in Southeast Asia, North Africa and East Africa and most parts of Europe.

It has a small shape, a narrow wing tip, a short concave tail, weak feet and not too many feathers. Feathers are monochromatic, blue or green, with metallic luster; Most kinds of men and women are very similar. Swallows spend a lot of time catching pests in the air. It is one of the most flexible birds, mainly feeding on insects such as mosquitoes and flies, and is a well-known beneficial bird. Nest in tree holes or cracks, or make holes in sand dikes, or stick mud on walls or protrusions of corridors, roofs, eaves, etc. In urban and rural areas. 3 pounds per work? Seven eggs.

Passeriformes: The general term for the genus Sparrow. The mouth is short and strong, conical, and slightly bent downward; There are 9 primary flight feathers and two pale horizontal spots on the outer edge. There are 19 species in the world. 5 species made in China; Among them, tree sparrow is a common species, with similar sex.

Sparrows are birds associated with humans, living in residential areas and near fields. Go out for food during the day, and the range of activities is within 2.5 ~ 3 kilometers. When moving on the ground, your feet jump forward. Your wings are short and round, and you can't fly far. Very noisy. Feed mainly on grains. When the grain is ripe, it will fly to the farmland in large groups to prey on the grain. Eat some insects during the breeding period. Chickens are raised by insects. Strong fertility. In the north, breeding begins in March and April, and at least 2 litters can be bred every year. In the south, sparrows can be seen breeding young birds almost every month. The nest is very simple, consisting of grass stems, feathers and so on. And most of them are built under the eaves and in holes in the walls. Each nest lays 4 ~ 6 eggs. The eggs are grayish white and covered with brown spots. Men and women take turns incubating eggs. The incubation period is 1 1 ~ 12 days. The chicks are naked and need 15 days to fly out to find their own food.