When the weather is cold, many birds will hibernate. At this time, we have to help the birds. So, how should we help the birds What about winter? How does thermal insulation work? Next, let's talk about the problem.

How to help birds survive winter how to operate thermal insulation

1. You can install a Wooden or bamboo woven box-type nests should have vents and cotton wool;

2. A light bulb can be installed, and a black cloth can be wrapped around the bulb.