I have an adult alex pair which are going through their anual molt. The female dropped its main tale feather a few days back, snap shared below :-
Indoor With Camera Flash

Outdoor Without Flash

Outdoor Without flash Closeup

As can be seen the feather shaft is brown . I need to ask from experts if normal green alexandrines have black feather shafts of central tail or brown ? Does it show presence of any split ?
I was comparing it with below snap shared earlier on the forum of various mutations of alexandrines and this one doesn't seem to match with anyone:
https://docs.google.com/file/d/0ByRATwN ... lhpT2RqdzA
thanks
Sherjil