1) getting hit by the red birds should have a 100% chance to clear your current inventory, cats are 30%-90% depending on your encumbrance (visually indicated by home arrow color/size) - I could see the birds stop following you because they were supposed to see if you are carrying worms or not
2) infinite resources is definitely a bug
3) controlling multiple birds and being unable to go home is DEFINITELY a bug
thanks for identifying these issues and glad you enjoyed the game when it was playable :D
Thanks for highlighting the first point about the inventory, I didn't notice the inventory in the beginning, I was just focus on the birds.
But I replayed the game, and still, nothing happened. There is a sound when a hit by them but I don't loss any thing from the inventory. It must be a bug or somthing.