How to draw swallows is beautiful and simple.

Beautiful and simple swallows are painted as follows:

1, step one, let's draw the head and eyes of a swallow.

2. Step 2, draw the swallow's mouth.

Step 3: Draw the body parts of the swallow.

Step 4. Then draw the left wing of the swallow.

Step 5, then draw the tail part of the swallow.

6. Step 6, then draw the two feet of the swallow.

7. Step 7. Finally, draw the right wing completely. Can draw a simple and lovely swallow.

Swallowing morphological function:

A slender body can reduce the resistance when flying. Swallow's wing shape has a high aspect ratio, which means that it can produce great lift and little resistance. However, this aerodynamic efficiency is at the cost of reducing maneuverability (for example, compared with short and wide wings), but this disadvantage is partially compensated by the forked tail, because such a tail can improve the maneuverability of birds.

The tail feathers of some species are very long, which can increase the lift. It acts like the flap of an airplane, ensuring the airflow to pass through the wings smoothly, and can delay the airflow when the swallow is ready to land, so that the swallow can stop flying without increasing the resistance. Most species have short tarsal bones and weak legs, which are suitable for inhabiting rather than walking, but those who dig holes or nest on cliffs have strong claws.

The above general description of the species and morphology of swallows does not apply to swallows of the genus Swallows. They look more like other passerine birds, and their original species may be somewhere between the Yanidae and other passerine birds. Swallow's legs and feet are relatively large, and the related muscle tissues are less degraded in area, muscle quantity and complexity.