Migratory birds fly to far away areas during a particular time of a year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?i. Unavailability of foodii. Extreme weather conditionsiii. Over crowdingiv. Lack of nesting areas
Migratory birds fly to far away areas during a particular time of a year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?
i. Unavailability of food
ii. Extreme weather conditions
iii. Over crowding
iv. Lack of nesting areas
