In my late teens, I adopted a stray budgie that had flown in through my next door neighbour’s window and landed on his head whilst he was asleep. After trying unsuccessfully to locate the owner of the bird, I kept the budgie, naming it Wally (after the neighbour), not knowing that it was actually a female! Uneasy with keeping birds in cages, I left Wally’s cage door open for her to come and go as she pleased. She loved to have a fly around the room, but always returned to her cage after her excursions.