Finches need room to fly in their cages. The finch owner should make sure that the finch cage is large enough to allow the finches plenty of room for flying. A finch cage should be wider than it is tall and provide ample room for flying from one perch to another.
Snakes belong to the animal class reptiles. This group also includes crocodiles, lizards, and turtles. Reptiles are cold-blooded animals that raise their body temperature by lying in the sun or lower it by crawling into the shade. Their body temperature changes to the temperature of its surroundings.
While snakes are limbless reptiles, which evolved from (and are grouped with) lizards, there are many other species of lizards which have lost their limbs independently and superficially look similar to snakes. These include the slow worm and glass snake.