What age finches are to be before selling them

[Krebsj]

In QFS for sale section young pairs are often advertised, what do others breeders think about what age pairs should be before being sold? For some breeders I suspect if they are overloaded in numbers this may be when birds have coloured up

[finchbreeder]

For me, once fully coloured and sexable. In that order of priority.
LML

[Tiaris]

To me young pairs means at least sexable & possibly fully coloured but never been put out to breed yet. 1st season birds.

[starman]

Agree… for non-DNAed , monomorphic birds it is always a lottery... for dimorphic birds, at least coloured enough to guarantee the sexes, and preferably rung to assure that they are not siblings if buying in pairs.