Call duck Colours

[OutbackQuackers]

1 year old, male call duck. He used to have a black head, but malted a few months ago and has never gotten it back.
Does anyone know what colour he is?

The last pic was when he had a black head.

 

[Corbdee]

Looks like a silver call.

 

[Luv Ducks]

Looks like a silver call.

If you have Call Ducks can you please answer a question for me. I recently had a Black Swedish half Call Duck hatch out. It is now 5 weeks old. It has a long pointed tail end to it. I have 4 Call Drakes. They all have a squared tail end, no point. It is not vocal enough to use the voice to sex it. Might it be a girl since the rear end is so much more different. It stayed small and I am not for sure which Hen it belonged to, thinking possibly my Muscovy. Thanks for any help you can give me.