Both sexual and filial imprinting are a *self-defining* terms. If a 'hand-reared' bird willingly mates with another of its own species, then it is not human-imprinted. However, where a male bird which is not imprinted onto humans meets a female, in captivity, who is human-imprinted, he can mate with her whether she wants this or not.
Birds are 'hand-reared' in a range of ways; some are removed as eggs; others are not removed from their parents until aftrer their eyes have opened. Some chicks are raised with their siblings, other are raised in solitary confinement. Studies of grey parrots have shown that the *amount* of parental deprivation is related to the degree of behavioural problems affecting these birds once they become adults.
thank you was just wondering thought i might as well ask