What type are they??

I know nothing about ducks ... can't figure out what type these are. They haven't laid any eggs. Husband's sister thinks they are both female or both males. She doesn't know anything about ducks either though. They were a gift to my husband from a friend he saw in the subway one day (she was on her way sell ducklings -- thee just happen to be the luck of the draw). They live at my sister-in-laws as we currently are in flat.

I kind of thought they lay as chickens do and without a male you'd get eggs but no ducklings?
Also, I thought if they were both males they'd be aggressive? But they aren't.

Need to find out what type they are so I can learn about them and share with her. Help!!!

Your males will have a distinctly curly tail feather that I'm not seeing in your picture. How old are they? My ducks aren't laying this time of year because there isn't enough daylight. That may be why you haven't seen eggs from yours yet too. I'm not sure on the breed I'm afraid.

Well the darker one has no tail feathers ATM. It got into a tussle with another farm animal and they were bitten off. But good to know about the tail feather. I'll track down some older pics in which they'd be there.

They live in the mountains and I'm sort of wondering if it's too cold for them?? Up there even in the summer at nightfall you need to put on a warm jacket. We sent them up there when they were ducklings. Neither has produced any eggs. She was going to make one Christmas dinner, but my 6 year old didn't want her to 'kill his ducks' as he wants them to live at our house in the country whenever we get it remodeled. He told her "if you can't take care of them (and not kill them) let me know and I'll take them to our new house".

They are about 9 months old. Here is an older photo. Don't know if you can tell by it though as they were in their awkward stage.

With no female ducks around to fight over having all males wouldn't be much of a problem, esp at 9 month, they probably established a "pecking" order the 1st few days or weeks

My trick for sexing a duck can be done even with ducklings at about one month of age. The simple truth is females are more vocal than males (imagine that:)). When you pick up the males they will often not make any sounds or at the most make a quick succession of exhales that sort of sounds like hissing. Females will quack and be more vocal about not enjoying being picked up.

As for the breed, they seem to be a mix. I can only say they appear to have some khaki campbell in them.

They look like Khaki Campbell/Bali cross