Some
of the things to take into account when visually sexing cockatiels are the age
of the bird and the colour of the bird. I will go through some of the more
common colours and with the help of pictures explain how it is possible to
tell the sexes apart. Under each basic mutation heading I have included
pictures where possible of a hen, a cockbird and a juvenile.
Wingspot Sexing
Firstly I will explain the method of wingspot
sexing as this is similar in all mutations except for pearl, pied and
sometimes lutino and the multi-mutations of these birds. This rule applies to
all solid coloured birds whose colour is a result of colour changing genes.
This will not be reliable with birds of visual pattern altering genes such as
pearl and pied. In pearl mutations the changes that this gene causes to the
normal pattern makes the wingspot method unreliable as males and females alike
can have spots or lack of. The Pied mutation is technically ADM Pied which
means this gene removes the difference that is normally noticeable between the
sexes. For more information on the pied please see my
Pied Cockatiel page. I have explained more
about the ADM factor of Pied on that page so I won't repeat myself. With
Lutino and Whiteface Lutino birds the spots are often there but because of the
lack of contrasting colour are very difficult to see. It is possible with a
black light but not everyone has access to one of those.
Wingspots are the spots on the underside of the
primary and secondary flight feathers. Males will usually have spots on only
the outer feathers furthest from the body or he will have none at all. A hen
will have spots on all the feathers from the body right out to the longest
flights. A juvenile bird usually has spots on all the feathers the same as a
hen and moults out these at around 6 months of age when they are replaced by
non-spotted feathers.