The avoidance behavior by fleeing for cover is learned in first three week post hatching

The selective avoidance of birds of prey develops in the first three weeks post hatching

&nbsp;The selective avoidance of birds of prey develops in the first three week post hatching and is not learned&nbsp;

The selective avoidance of birds of prey is learned before hatching&nbsp;

Newborn chicks will react by fleeing for cover when a model of a hawk is drawn above them in the air. Experiments reveal  that this response is completely non-specific and can be elicited by moving objects of any shape in the air. Even the chicks  are three week old, they respond selectively to objects that have the shapes of birds of prey and ignore other. In an  experiment, newly hatched chicks were divided into two groups: One was exposed twice a day to models of different  shape and sizes and the other was reared with no exposure to such models at any points. After three weeks, both groups  were tested for their responses to different shaped models. Chicks of both group showed selective avoidance responses  only to model shaped like birds of prey.

Newborn chicks will react by fleeing for cover when a model of a hawk is drawn above them in the air. Experiments reveal that this response is completely non-specific and can be elicited by moving objects of any shape in the air. Even the chicks are three weeks old, they respond selectively to objects that have the shapes of birds of prey and ignore others. In an experiment, newly hatched chicks were divided into two groups: One was exposed twice a day to models of different shapes and sizes and the other was reared with no exposure to such models at any point. After three weeks, both groups were tested for their responses to different shaped models. Chicks of both groups showed selective avoidance responses only to model shaped like birds of prey. This experiments shows that

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