Are Budgerigars easier to breed in captivity than other parrot species?

most are. typically, budgies and cockatiels are considered the "bread and butter" birds since they are typically easy and willing to breed. i have a friend who breeds both in a flock. his cage is large with nestboxes throughout the aviary. he gets many babies a year!!
he uses the money he makes off these babies to buy bulk bird food for his other parrots, pheasants, quail ... etc
are you thinking of breeding budgies??