Read the text and determine if the sentence is true:

How to protect chicken combs from winter cold<br>Wait until the evening. To keep a better control over your birds, wait until they have entered the roost for the night before applying any covering. Overnight is when the temperature will be lowest, so it is when your chickens will be most susceptible to frostbite.

Sentence: To keep a better control over your birds so won't cause trouble
It's impossible to say