So, there are 3 growth stages but the bird only grows twices. Going from a chick to a fledgeling, thats when the scripted bonding events happen. Those are in white text. Once the bird is a fledgeling, those are replaced by the random events, which are in pink. Those are all special moments that happened between me and my bird. Then the bird facts, which are in green, kick in when the bird is fully grown.
In hindsight, I can see why thats confusing. I probably should have written events all the way to full growth for the bird, and started the bird as an egg to have longer story. Then just use the random ones for after those run out.
My original intent was actually to use the false sense of security like you mention and have your bird die, then get another and another up to day 100, then you die of old age. But it was WAY too sad. So the timeline for everything was designed around that.