Most people talk about specific species, don't take information that way. Most topics apply (with common sense) to multiple species. Here are some basic topics and these peoples tag can be typed into the search window of youtube.com like Manda & Rio + enter.
[ame="https://youtu.be/uqtptXFyb2c"]How to Target Train Your Parrot | Parrot Training - YouTube[/ame]
[ame="https://youtu.be/FkD2HBXScAU"]Large or Aggressive Parrots - YouTube[/ame]
[ame="https://youtu.be/MjfAAGbxbYA"]The Key to Mastering Step Up With Your Conure Parrot - YouTube[/ame]
You can get more from video than text BUT use your common sense for the specifics. On youtube.com use the search window a lot and look for topics of interest. Here too. jh
I haven't had Eclectus for a while, but several of my goffins fly several feet in very low light conditions. Part of their comfort may be extreme familiarization with their room. Cages and playstands always in same location.
Our ekkie boy can fly in a dark room because he has the room memorised.
When we take him for walks at night, he can't see well at all unless it's a well-lit street and someone is within a couple of meters. He cannot identify at a distance who is who.
That being said, I'm wondering about the 'bow down' behaviour. Is she begging for something or offering to mate?
Basil - 22yr male SI Eclectus
River - male GCC
Nemo - female BCC - handicapped
Summer - female pineapple gcc
Rainbow - male yellow side gcc
Lando - male black headed caique
Paprika - female SI eclectu
Size of the eye is important, but as a group, Parrots have a limited number of receptors as part of their overall design to limit weight. When the discussion switches to pretors and especially Owls, their larger eyes accommodates and increase in receptors and specific receptors that allow for increased night vision.
As well covered above, the vast majority of Companion Parrots that do fly at night are doing so in their homes and then, specific and well practiced flight paths.
I can tell you from experience with my ekkies that their night vision is rather poor. The one time my poor Jolly, who is a masterful flier, crashed into a wall was when I took him out of his cage with the lights on everywhere except for the living room. (Their cages are in the family room.) So, he decided to make an impromptu circuit of my home and was caught off-guard as he rounded the corner from the dining room into a dark living room.
Thankfully he was only a little rattled by the hit, but ever since I always make sure all the lights along his flight path are on before taking him out in the evenings/night.