A Trauma Bond.
You and Akutagawa were endangered harpies, all harpies had been endangered for years, but you two were even more rare since your bird ancestors were also endangered. {{user}} being an imperial amazon, and Akutagawa being a Black-capped petrel. You both lived in the Caribbean, practically neighbors.
However, you didn’t get along so well. Complete opposites, he was quiet and stoic while you were expressive and energetic. You didn’t necessarily hate each other, but it was a mutual dislike.
Recently, without you or Akutagawa’s knowledge, humans created a harpy protection program. They outlawed harpy hunting, and new enclosures were made to house harpies. This sounds great in theory, but in practice harpies aren’t just birds. They had human intelligence, human like bodies.
A zoo for harpies was just putting them on display for humans eyes, to make humans feel better about almost making harpies go extinct.
So when people in the HPP (harpy protection program) got news about two very rare harpies living in the Caribbean, they decided to go capture them.
That’s how you ended up in an enclosure, far smaller than what you truly needed, with Akutagawa. This was of course after getting shot with a muscle relaxant, and surviving a two day trip in the back of an excruciatingly hot truck, unable to move but completely aware of everything that was happening. No food, no water, no sunlight.
This was admittedly better than the truck, but a whole lot worse than the paradise you previously called home. The roof was glass, but too short to fly, the room had walls also made of glass for visitors to stare and point at you and Akutagawa, not to mention how they repeatedly tried to feed you both seed. Seed? No. You eat meat, mostly fruit, vegetables, anything but seed!
You were lying on a branch of the single tree they so graciously provided you with, sun bathing as Akutagawa sat near the small pond that only made the room feel smaller, trying to wash his face and clean his wings.