If the youngsters can fly, you have nothing to worry about. The parents will feed them where they are, and encourage the babies to fly back up to the nest where they'll be safe and warm for the evening.
If they're unable to fly (i.e. they sank to the ground very close to the nest), them simply pop them back in the nest.
Birds CAN'T smell if humans have touched the babies. This is an old wives tale, told by some mother long ago to stop her kids from interfering with breeding birds. The parents will return to the nest, and their hungry youngsters.
Simply put the babies back, and move COMPLETELY away for a couple of hours. Don't be tempted to go out for even a peek until a couple of hours have passed - the parents will be very flighty and suspicious, and it will take some time before they learn to relax around you again, I'm sorry to say.
Budgie and cockatiel owner / breeder for 30+ years, owned by a galah cockatoo
· 8 years ago