As Chad, the Kensingtons' teenage son, played a game of Angry Birds on one rear monitor, his father watched a movie on the opposite screen.
According to Brian Robbins, the executive producer of "Sonny With a Chance," Ms. Lovato, who even back then had two tattoos (she now has 24, if you count all of the birds on one of her forearms), never fit neatly into the teenage princess role.
After 2 weeks, a plastic curtain was installed that divided the experimental room in half: eight birds on one side of the divider were visually isolated from eight birds on the other side of the divider.
Birds on one day were prevented from singing for 2 hours in the morning and then the percent of vocal changes was compared to songs sung the day previous or the day after, when birds were allowed to sing continuously.
We recorded nutcracker behavior during experiment 2 using a small digital video camera that was able to record all birds on one side of the room simultaneously (Table 1).
After the first 10 days of feather growth enrichment objects to which the birds were naïve were installed in the cages of birds on one side of the divider only, thus separating birds into an enriched experimental group (n = 8) and a non-enriched control group (n = 8).
Then, as in experiment 1, enrichment objects to which the birds were naïve were installed in the cages of birds on one side of the divider only, forming an enriched group (n = 11) and a non-enriched control group (n = 12).
Debate about the classification of falconiform birds centres on two topics: New World vultures (family Cathartidae) as ciconiiforms related to the storks (family Ciconiidae) and the relationship of falcons (Falconidae) to various other orders.
Similarly, Beauchamp et al. [69] found that nutmeg mannikins (Lonchura punctulata) maintained their foraging specialisations for 10 consecutive days in flocks of four birds trained on two different foraging tasks, although pair formation was not considered in that study.
