Pieds can't be visually sexed. It's a bit of a pain isn't it! You just have to wait for behavioural cues to tell you what Ollie is. Males whistle and chatter, while females don't usually make much noise at all except for the one toned contact call.
yeah i have been wondering a lot about this lately too..
there is the talking/chattering stuff, but there are always exceptions to the rule...
i think i will make a list of what i tend to see as 'mainly' boy traits, and same with girls...
so... there is always the exception, but... BOYS
-boys tend to look alert much of the time
-boys tend to have narrow hips
-boys tend to stand with their feet close together
-boys tend to have a good tall posture
-boys tend to look interested in any noise that happens/you make
-boys tend to hold their wings up high a lot
-boys tend to stretch their legs out when they stand a lot
-boys tend to stretch their necks up in excitement a lot
-boys tend to whistle and chirp at a young age
-boys tend to try to teach you many random noises
-boys tend to whistle in to things, (like a vase for example)
-boys tend to hop and strut
-boys tend to open their wings a bit when 'nodding'
-boys tend to tap their beaks on things
-boys tend to often make heart shapes with their wings
-girls tend to have wide hips
-girls tend to stand with their feet wide apart
-girls tend to have a slumping, relaxed posture
-girls tend to look bored with any noise that happens/you make
-girls tend to hold their wings down low a lot
-girls tend to relax their legs and 'sit' a lot
-girls tend to not stretch their necks up in excitement much
-girls tend to make two toned calls a lot
-girls tend to ignore a lot of noises you try to teach her
-girls tend to fluff and preen a lot
-girls tend to not strut or hop
-girls tend to hold their wings close to her body when 'nodding'
-girls tend to not tap their beaks on anything
-girls tend to cuddle up into spots a lot
hmmm... i am sure i have missed things... and some things work for both male and female, but the listed one usually more....
dunno though.. just my opinion