Berry (♀ Cockatiel) hatched June 2017
Opal (♂ Budgie) hatched 13 August 2017
Pearl (♀ Budgie) hatched 15 August 2017
+ an aviary of 16 other budgies! all hatched 2014-2017
How old is he/she? It's easiest to tell when they're adults! Looks like a girl though - could you post a picture of what his/her tail feathers look like from below? That's the most telling way to identify gender.
Looks like a female to me! My female looks very similar to this one!
BUT....many juveniles will appear to look female, so it does depend on the age. If it is a couple months, it still could be a male. Most males will lose the pearling after the first couple molts and lose the barring of the tail feathers.
Berry (♀ Cockatiel) hatched June 2017
Opal (♂ Budgie) hatched 13 August 2017
Pearl (♀ Budgie) hatched 15 August 2017
+ an aviary of 16 other budgies! all hatched 2014-2017
Still can't see the tail feathers clearly in the picture! If it is an adult and there are bars/stripes on the underside of the tail feathers (look at him/her from below), then it is most likely a female - although males often have these until they go through their first adult moult, so it really depends on age.
Berry (♀ Cockatiel) hatched June 2017
Opal (♂ Budgie) hatched 13 August 2017
Pearl (♀ Budgie) hatched 15 August 2017
+ an aviary of 16 other budgies! all hatched 2014-2017
Berry (♀ Cockatiel) hatched June 2017
Opal (♂ Budgie) hatched 13 August 2017
Pearl (♀ Budgie) hatched 15 August 2017
+ an aviary of 16 other budgies! all hatched 2014-2017