The Bird Up Collection Items in rough order required to truly bird up :) This order focuses on maximising ult uptime and damage as rapidly as possible. Unless this leads to a killstreak you will need to divest into the farming and survivability/utility as needed.
$BIRD None of these directly help with bird uptime or dmg, but the farming boost will help you get to what does faster. Will usually want to get up to cultist sacrifice; If youre monetary needs are higher consider further invertment. Honourary Bird.
Exotic Birds Assorted supportive items to be taken as neede, helps with survivability or other utility. Honourary bird.