Novel Object Exploration Behavior

In trial 3, the novel object test was conducted for each quadrant (section) of the four houses. The test was carried out every 7 days in the morning, starting at 31 days of age. The test was conducted by placing a novel object in the center of the section by an observer. Observation points were set the same every week. The novel object was a cone-shaped container (30 cm H x 24 cm D) and had identical proportions of green, yellow, and red colors. The observer moved away from the object, and the bird activity was evaluated by counting the number of birds that approached toward the novel object in different timepoints (30 s, 1 min, 5 min, 10 min, and 15 min).