References in periodicals archive ?
Pecking at a red cube : During the first 5 days of life, chicks were allowed 60 min daily to peck at a red plastic cube (l3x3x3 cm).
The peak force (measured in grams) of a bird pecking at the food was recorded during the first 3 min after being placed in the cage.
Drinking behaviour : The number of birds pecking at water at ambient temperature ranged from 40 to 79% per treatment per age group (Table 2).