About right and left footed parrots: There is a study which shows that parrots are proportionately left-footed to right-people--ie. about 90% of people are right-handed and therefore left-brain-hemisphere dominant; for parrots they say that 90% of them are left-footed and they are the only animal that has this heavy distribution of "left-footed=right-brained dominant"
THEY ARE WRONG!
As you have shown in your notes, most so called left-footed parrots step with their right foot first; left-brain-dominant/right-handed people prefer to stand on their right foot when standing on one leg, and will lead with their right foot when stepping (especially when stepping to a risky position) but they will reach to grab something with their left-foot.
The reason is because a left-brain-dominant person AND PARROT will feel more secure standing on their right leg since awareness and agility is far better adapted and developed there for them.
That's right folks, left reaching parrots are actually right-footed and left-brain dominant, and active brain scans will show this (IF anyone throws the money at it to find out). The study is faulty due to them assuming they were dealing with arms instead of legs--very faulty. Both parrots and humans, and most other animals all the way to bacteria are about 90/10 left-brain/right-brain (there are exceptions in some bacteria and plants, but perhaps that too is due to a misunderstanding of anatomy).
Try it.:21:
Correction: Most other animals are not 90/10 distribution (I mussed my numbers) they are usually 70/30 to 60/40. The belief is that the left-brainded activity of language is what contributes to the heavy right handedness in humans, because, the left-brain develops for language. So, they checked parrots (since they have language skills) and they found that they are opposite distributions, but as mentioned--they're not correct.