Our budgie Sam, who was raised with our pair of cockatiels when all were youngsters and has always been housed with them, has started helping feed their brood of chicks. He also preens and feeds both parents. The adults, having known Sam since they were only a few months old, are totaly trusting of the parakeet and seem to appreciate the help.
That's awesome!!! I would be very watchful though just in case. I had three tiels raise a clutch together one year and the next year, the main male wouldn't let his buddy help anymore and started fighting with him. Tiels can be picky sometimes lol.
Thanks DallyTsuka for siggy!
Snowball-whiteface cinnamon cock
Jeep-normal gray cock
Pebbles-whiteface pearl pied hen
Pankakes-PF cinnamon pearl pied cock