Can I trust my breeder?

Hi there! This is my first post on the forum so forgive my noobie-ness.

I've been looking around for an Indian Ringneck for some time now, I have now found someone who buys them from a breeder friend and re-sells them.
She calls herself a bird trader.
The birds look very healthy, they're unclipped and have an appropriate veggie/fruit/seed diet. (No pellets yet).
She claims they are all 3 months old but have no rings around their feet to confirm this.
She also stated the genders are unknown and therefore she is assuming they are male... That's a little BS if you ask me...
I don't mind which gender they are, I do want to make sure she's being truthful about the age.

They have about a 50-50 black to-red ratio in their beaks and all have a light green ring with slightly darker feathers on their head than the body.

Is there any way to identify the age or gender by pictures? (hopefully I uploaded it right).

Thank you in advance,

Olivier. :green1:

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