During this time when fewer natural foods are available and air temperatures are lower, extra feeding can keep a bird warm and well.
在这段时间里，自然中鸟类的食物越来越少，空气温度也越来越低，额外的喂养可以让鸟类保持温暖和健康。
2
Well above two thirds of these deaths, often associated with inappropriate feeding practices, occur during the first year of life.
其中三分之二以上的死亡通常与一岁以前不合理的喂养方式有关。
3
There are a couple of different brain centers that graduate feeding behavior as well as hunger. They’re in different parts of the central part of the brain called the hypothalamus.