Remember you want something recordable or measurable.
Example:
In a flock of [total number tested], (some number)% of flock at age (in days) responds to 'Hawk shadow' by (description of behavior), (some number)% responded alternately by (description of behavior) others had no change in behavior.
In a flock of [total number tested], (some number)% of flock at age (in days) responds to 'Swan shadow' by (description of behavior), (some number)% responded alternately by (description of behavior) others had no change in behavior.
OR
After an initial training period (in days) associating the chicken call that means 'food' with the human word 'treats'. In a flock of [total number tested], (some number)% of flock at age (in days) responds to the word "treats" by (description of behavior), (some number)% responded alternately by (description of behavior) others had no change in behavior.
After an initial training period (in days) associating the chicken call that means "danger from above" with the human word 'Danger'.In a flock of [total number tested], (some number)% of flock at age (in days) responds to the word "Danger" by (description of behavior), (some number)% responded alternately by (description of behavior) others had no change in behavior.
OR
After an initial food association period (in days), chickens were allowed to choose a large cardboard cube, picking the 'correct' color resulted in a reward- picking an 'incorrect color' resulted in no reward.
[total of chickens] of chickens were divided into four equal groups after the initial food association period- each group had a different 'correct' color (red, yellow, green, blue). Over (time in days) (color of group) (increased/decreased) performance to a maximum of (% correct). Concluding chcikens (re/are not) sensitive to the (name of color in group).